Grand Test 1 for NEET 2022

Which statement regarding anal cerci and anal style in cockroach is correct?

Select the  correct  statement  regarding Periplaneta americana

In human fibrous cartilage is found abundantly

Which of the following statement is incorrect regarding cuboidal epithelium ?

Which of  the  following  statement(s)  regarding  cell junctions is/are correct ?

Which of  the  following  types  of  connective  tissue  is Mismatched with its matrix ?

How many of the following junctions are found in epithelium tissue :-

Tight junction, Gap junction, Adhering and Interdigitation.

Select the correct option about given diagram

1. Mesothelium is : –

Match the terms (given in column I) with their explanation

(given in column II) and choose the correct combination

from the options given below

‘X’ ensures the production of ‘Y’ phase in the life cycle of

sexually  reproducing  organisms  whereas  fertilization

restores the ‘Z’ phase.

Iden tify X,  Y an d Z.

The following events occur during the process of meiosis.

Arrange the following events of meiosis in the correct

sequence.

I. Terminalization

II. Crossing over

III. Synapsis

IV. Disjunction of genomes

Number of  bivalents  are  8  in  prophase    What  is  the

number of chromosomes during anaphase II ?

A triploid nucleus cannot undergo meiosis because

Which one of the following precedes re-formation of the

nuclear envelope during M phase of the cell cycle ?

It is important that the centromere not divide till the end

of metaphase because it

In animal cells, cytokinesis involves

The major  event  that  occurs  during  the  anaphase  of

mitosis,  which  brings  about  the  equal  distribution  of

chromosomes is

Which of  the  following  cellular  structures  always

disappears during mitosis and meiosis?

During  mitosis,  nuclear  envelope,  nucleolous  begin  to

form and ER to reappear at ______

An example of edible underground stem is-

Leafy green stems of limited growth modified to perform photosynthesis are called-

Find incorrect match-

In one plant adventitious roots are modified for storage and in other plant a lateral branch with short internodes and each node bearing a rosette of leaves and tuft of roots is found.They are

How many of the following do possess opposite phyllotaxy among them -China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium(oleander)

Leaf tendrils are found in-

120 phyllotaxy is found in –

In pitcher plant, lid of pitcher is formed with-

Whorled phyllotaxy is found in-

Example of sessile leaves are

All of the following are tap root except-

All of the following are correct with respect to different region of root except-

Find mismatch regarding tendril-

Find mismatch with respect to function-

All are examples of succulent leaves except-

Cell theory was proposed by –

   Protein synthesis in an animal cell occurs

Choose the wrong statements regarding bacterial cell

(i)    Glycocalyx is the outermost envelope in bacteria.

(ii)  The  glycocalyx  could  be  a  loose  sheath  called

capsule.

(iii) The glycocalyx may be thick and tough called slime

layer.

(iv)  A special structure formed by the plasma membrane

is  called  mesosome.

(v)   Small  bristle-like  fibres  sprouting  out  of  the  cell

are called fimbriae

Select the incorrect statement –

1. Mycoplasma is the smallest cell (0.3 ~L m in length)
2. Cytoplasm is the main arena of cellular activities
3. Nerve cells are some of the smallest cells
4. Various physical reactions occur in cytoplasm to keep the cell in the living state

Which of the following statement is not concerned with fluid mosaic model

of plasma membrane?

Which one is correct about the bacterial cell envelope?

Lipids are arranged within the membrane with –

Which of the following is the correct sequence of route of the secretory
product?

I. Cilium/Flagellum contains an outer ring of nine doublet microtubules

surrounding two singlet microtubules

II. Cilia are smaller which works like oars, causing the movement of either

the cells or surrounding fluid

Ill. Flagella are comparatively longer and responsible for cell movement.

IV Cilium and flagellum are covered with plasma membrane

Which of the above statement is correct?

The inner and outer nuclear membranes of nuclear envelope can be

differentiated in that-

Cell organelle that divides intracellular space of a cell into two
compartments luminal space and extra luminal spaces –

Actively functional nucleus shows-
(a)
(b)
(c)
(d)

Which layer of the human tooth links it with periodontal layer of alveolar
socket?

Find the mismatched

Which of the following is odd about findings of mucous layer?

Find the correct statement regarding the salivary glands

1. Read the statements about saliva
2. saliva helps in lubricating and adhering the masticated food particles

into a chyme

2. About 60 per cent of starch is hydrolyzed here by this salivary enzyme
3. Lysozyme present in saliva acts as an antiviral agent that prevents

infections.

4. Optimum pH for saliva is 7.4

How many of the following are incorrect?

Find the wrong statement about the secretion of Stomach

Which of the following is incorrect about the enzyme, type of secretion

and substrate?

Which of the following Is wrong about chylomicrons?

A patient of diabetes mellitus excretes glucose in urine even when he is

kept on a carbohydrate free diet. The most likely reason for that

After digestion the passively absorbable substance is

Vomitting centre is present in

Kwashiorkor disease is due to

Activation of chymotrypsinogen into chymotrypsin is caused by

Which layer of gastrointestinal tract forms rugae in stomach and small
finger like foldings called villi in small intestine?

Which of the following is an incorrect statement?

Which is the correct sequence of air passages in man?

Which is correct about nasopharynx?

Inspiration occurs when there is a negative pressure in the lungs with
respect to atmospheric pressure.’ This negative pressure is achieved when
–

Which of the following statements about the mechanism of ventilation In
breathing is false?
A.
B. During inspiration the lungs act as suction pump
C. Inspiration is a passive and expiration is an active process.@
D. For normal breathing external intercostal muscles and diaphragm
play an important role

If residual volume is 1200 ml, expiratory reserve volume is 1100 ml, Tidal
volume is 500 ml inspiratory reserve volume is 3000 ml then find out
functional residual capacity of this person
A.
B.  @
C.
D.

Which of the following is correct?

Which of the following is incorrect about Oxy-haemoglobin curve?

At what partial pressure of oxygen 50% of hemoglobin molecules of RBC

get saturated, under normal conditions?

Which of the following is false regarding the regulation of respiration?

Which antibody is reaction is associated with the disease asthma?

Which of the following can alter respiratory mechanism?

Each 100 ml of human arterial blood carries ‘P’ ml of o2 and ‘Q’ ml of co2
whereas each 100 ml of venous blood carries ‘R’ ml of 0 2 and ‘S’ ml of C02.
Choose the correct value of P, Q, Rand S

Oxygen dissociation curve is

Dissociation of CO2 from carbamino-haemoglobin takes place when

The amount of zinc required to produce 224 ml of H₂ at STP on treatment with dilute H₂SO₄ will be

Given the numbers : 161 cm, 0.161 cm, 0.0161 cm. The number of significant figures for the three numbers is

Haemoglobin contains 0.334% of iron by weight.The moleculer weight of haemoglobin is approximately 67200. The number of iron atoms (Atomic weight of Fe is 56) present in one molecule of haemoglobin is

In the reaction

4NH₃(g) + 5O₂(g) –>  4NO(g) + 6H₂O(l)

When 1 mole of ammonia and 1 mole of O2 are made to react to completion

An organic compound containing C, H and N gave the following analysis C = 40%, H = 13.33% ,N= 46.67%. Its empirical formula would be

How many g of dibasic acid (mol. Weight 200) should be present in 100 ml.of the aqueous solution to give strength of 0.1 N?

Which one of the following is not isoelectronic with O^2-?

If uncertainty in position and momentum are equal, then uncertainty in velocity is

The measurement of the electron position is associated with an uncertainty in momentum , which is equal to 1 * 10^-18 gcm s^-1. The uncertainty in electron velocity is , (mass of an electron is 9*10^-28 g)

A. 1*10¹¹ cm s^-1

B. 1*10⁹ cm s^-1

C. 1*10⁶ cm s^-1

D. 1*10⁵ cm s^-1

For which of the following sets of four quantum numbers , an electron will have the highest energy ?

n          l           m        s

A.3 2          1          +1/2

B.4 2          -1        +1/2

C.4 1          0          -1/2

D.5 0          0          -1/2

Uncertainity in position of an electron (mass = 9.1 * 10^-28 g) moving with a velocity of 3 * 10⁴ cm/s accurate upto 0.001% will be (Use h/(4∏) in uncertainty expression where h = 6.626 * 10-27 erg-second)

The radius of hydrogen atom in the ground state is 0.53 Å. The radius of Li2+ ion (atomic number = 3) in a similar state is

A transition element X has a configuration (Ar)3d⁴ in its +3 oxidation state. Its atomic number is

What will be the longest wavelength line in Balmer series of spectrum?

In Bohr’s model of an atom, when an electron jumps from n = 1 to n = 3 , how much energy will be eemitted or absorbed ?

A. 389 * 10^-12 ergs

B. 239 * 10^-10 ergs

C.15 * 10^-11 ergs

D.1936 * 10^-10 ergs

The electronic configuration of gadolinium (Atomic no. 64) is

A. [Xe]4f³ 5d⁵ 6s²

B. [Xe]4f⁶ 5d² 6d²

C. [Xe]4f⁸ 5d⁹ 6s²

D. [xe] 4f⁷ 5d¹ 6s²

1. The ion that is isoelectronic with CO is

A. CN^–

B. N2⁺

C. O2^–

D. N2^–

1. The Bohr orbit radius for the hydrogen atom (n = 1) iss approximately 0.530 Å. The radius for the first excited state (n = 2) orbit is (in Å)

A. 77

B. 06

C. 13

D. 12

1. The position of both , an electron and a helium atom is known within 1.0 nm. Further the momentum of the eelectron is known within 5.0 * 10-26 kg . ms-1. The minimum uncertainty in the measurement of the momentum of the helium atom is

A. 8.0 * 10^-26 kg ms^-1

B. 80 kg ms^-1

C. 50 kg ms-1

D. 5.0 * 10-26 kg ms^-1

1. Among the following which one is not paramagnetic ? [Atomic numbers ; Be = 4 , Ne = 10, As = 33,  Cl = 17]

A. Ne²⁺

B. Be+

C. Cl^–

D. As⁺

Which of the following configuration is correct for iron ?

A. 1s²2s²2p⁶3s²3p⁶4s²3d⁷

B. 1s²2s²2p⁶3s²3p⁶4s²3d⁵

C.1s²2s²2p⁶3s²3p⁶4s²3d⁵

D. 1s²2s²2p⁶3s²3p⁶4s²3d⁶

In which of the following molecules are all the bonds not equal?

A. NF₃

B. CIF₃

C.BF₃

D. AIF₃

In which of the following pairs, the two species are iso-structural?

A. SO^2-₃ and NO₃^–

B. BF₃ and NF₃

C. BrO₃^– and XeO₃

D. SF₄ and XeF₄

The correct order of C ̶  O bond length among CO, CO₃^2-,CO₂ is

A. CO < CO₃^2- <CO₂

B. CO₃^2- < CO₂ <CO

C. CO < CO₂ < CO₃^2-

D. CO₂ < CO₃^2- <CO

In a regular octahedral molecule , MX6 thee number of X ̶ M  ̶  X bonds at 180° is

A. Three

B. Two

C. Six

D. Four

In which of the following molecules / ions BF₃, NO₂^–, NH₂^– and H₂O , the central atom is sp² hybridized ?

A. BF₃ and NO₂^–

B. O₂^– and NH₂^–

C. NH₂^– and H₂O

D. NO₂^– and H₂O

According to MO theory which of the following lists ranks the nitrogen species in terms of increasing bond order?

A. N₂^– < N₂^2- < N₂

B. N₂^– < N₂ < N₂^2-

C. N₂^2- < N₂^– < N₂

D. N₂ < N₂^2- < N₂^–

In the case of alkali metals , the covalent character decreases in the order

The state of hybridization of C₂, C₃, C₅ and C₆ of the hydrocarbon,

Is in the following sequence

Which one of th following species doess not exist under normal conditions?

A. Li₂

B. Be₂⁺

C. Be₂

D. B₂

In which of the following pairs of molecules / ions , the central atoms have sp² hybridization ?

A. BF₃ and NH₂^–

B. NO₂^– and NH

C. BF₃ and No₂^–

D. NH₂^– and H₂O

In which of the following molecules the central atom does not have sp3 hybridization ?

A. CH₄

B. SF₄

C. BF₄^–

D. NH₄⁺

Some of the properties of the  two species , NO3- and H3O+ are described below. Which one of them is correct?

How many σ and ∏ bonds are present in the following molecule:

The IUPAC name of the following compound is

What is the shape of HCHO?

Write formulas for the first three members of the homologous series beginning with

In the organic compound

The pair of  hybridized orbitals involved in the formation of C2 ̶C3 bond is

The number of resonancecontributing structures for the following compound is

Which of the following carbonyl compounds will form carbanion most readily?

Which of the following can be appliedto explain relative order of stability of carbocations?

If the carbocation   rearranges to gain stability , it will rearrange to

Which of these shows incorrect representation of inductive effect?

Hyperconjugation is most useful for stabilizing which of the following carbocations?

Heterolytic fission of  a covalent bond  in organic molecules gives

A boat is moving with a velocity 3i + 4j with respect to ground. The water in the river is moving with a velocity – 3i – 4j with respect to ground. The relative velocity of the boat with respect to water is

The three vectors A = 3i-2j + k, B = i-3j + 5k and C = 2i + j-4k form

A rocket is fired upward from the earth surface such that it creates an acceleration of 19.6 m/s². If after 5 s, its engine is switched off, the maximum height of the rocket from earth’s surface would be

If A = 4i + 4j + 4k and B = 3i + j + 4k, then angle between vectors A and B is

For a rocket moving in free space, the fraction of mass to be disposed of Off to attain a speed equal to two times the exhaust speed is given by (given e2 = 7.4)

The value of M of the hanging block is in the figure, which will prevent the smaller block (m=1 kg) from slipping over the triangular block. All the surfaces are smooth and string and pulley are ideal. (Given: M’=4 kg and θ=370)

A lighter body and heavier body both are moving with same momentum and applied same retarding force. Their stoping distances are s1 and s2s1 and s2 respectively. Then the correct relation between s1 and s2s1 and s2-

Five persons A, B, C, D & E are pulling a cart of mass 100 kg on a smooth surface and the cart is moving with acceleration 3 m/s2 in east direction. When person ‘A’ stops pulling, it moves with acceleration 1 m/s in the west direction. When person ‘B’ stops pulling, it moves with acceleration 24 m/s2 in the north direction. The magnitude of the acceleration of the cart when only A & B pull the cart keeping their directions same as the old directions are:

A body moves along an uneven surface with constant speed at all points.

The normal reaction due to ground on the body is :

A truck and a car are moving with equal velocity. If equal retarding force is applied on each, then on applying the brakes both will stop after certain distance 

A point mass m is suspended from a light thread of length l, fixed at O, is whirled in a horizontal circle at constant speed as shown. From your point of view, stationary with respect to the mass, the forces on the mass are

If a cyclist moving with a speed of 4.9 m/s on a level road can take a sharp circular turn of radius 4 m, then coefficient of friction between the cycle tyres and road is 

If the tension in the cable of 1000 kg elevator is 1000 kg weight, the elevator 

An object with a mass 10 kg moves at a constant velocity of 10 m/sec. A constant force then acts for 4 second on the object and gives it a speed of 2 m/sec in opposite direction. The acceleration produced in it, is 

A block (B) is attached to two unstretched springs S1 and S2 with spring constants k and 4k, respectively (see figure I). The other ends are attached to identical supports M1 and M2 not attached to the walls. The springs and supports have negligible mass. There is no friction anywhere. The block B is displaced towards wall 1 by a small distance x (figure II) and released. The block returns and moves a maximum distance y towards wall 2. Displacements x and y are measured with respect to the equilibrium position of the block B. The ratio y/x is 

A bob of mass M is suspended by a massless string of length L. The horizontal velocity V at position A is just sufficient to make it reach the point B. The angle θ at which the speed of the bob is half of that at A, satisfies

Figure:

A block of mass 0.50 kg is moving with a speed of 2.00 ms^–1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

A physical quantity Q is found to depend on observables x, y and z, obeying relation . The percentage error in the measurements of x, y and z are 1%, 2% and 4% respectively. What is percentage error in the quantity Q?

If n denotes a positive integer, h the Planck’s constant, q the charge and B the magnetic field, then the quantity  has the dimension of

The diameter of a cylinder is measured using a Vernier callipers with no zero error. It is found that the zero of the Vernier scale lies between 5.10 cm and 5.15 cm of the main scale. The Vernier scale has 50 divisions equivalent to 2.45 cm. The 24^th division of the Vernier scale exactly coincides with one of the main scale divisions. The diameter of the cylinder is

In the determination of Young’s modulus  by using Searle’s method, a wire of length L = 2 m and diameter d = 0.5 mm is used. For a load M = 2.5 kg, an extension l = 0.25 mm in the length of the wire is observed. Quantities d and l are measured using a screw gauge and a micrometer, respectively. They have the same pitch of 0.5 mm. The number of divisions on their circular scale is 100. The contributions to the maximum probable error of the Y measurement

Two full turns of the circular scale of a screw gauge cover a distance of 1 mm on its main scale. The total number of divisions on the circular scale is 50. Further, it is found that the screw gauge has a zero error of −0.03 mm. While measuring the diameter of a thin wire, a student notes the main scale reading of 3 mm and the number of circular scale divisions in line with the main scale as 35. The diameter of the wire is 

The dimension of magnetic field in M, L, T and C (Coulomb) is given as

(A) MLT^–1C^–1

(B) MT²C^–2

(C) MT^–1C^–1

(D) MT^–2C^–

Three blocks A, B and C of masses 4 kg, 2 kg and 1 kg respectively, are in contact on a frictionless surface, as shown. If a force of 14 N is applied on the 4 kg block, then the contact force between A and B is

A plank with a box on it at one end is gradually raised about the other end. As the angle of inclination with the horizontal reaches 30º, the box starts to slip and slides 4.0 m down the plank in 4.0 s. The coefficients of static and kinetic friction between the box and the plank will be, respectively

The force F acting on a particle of mass m is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to 8 s is 

A rocket with a lift-off mass 3.5 × 10⁴ kg is blasted upwards with an initial acceleration of 10 m/s². Then the initial thrust of the blast is

(A) 1.75 × 10⁵ N

(B) 3.5 × 10⁵ N

(C) 7.0 × 10⁵ N

(D) 14.0 × 10⁵ N

A light spring balance hangs from the hook of the other light spring balance and a block of mass M kg hangs from the former one. Then the true statement about the scale reading is