E2 II PART TEST 6 for Batch 2022

1.The linkage present in the following diagram to form the chain is

2.In RNA, every nucleotide residue has an additional –OH group present at

3.The term ‘Nuclein’ was coined by

4.Which of the following statement (s) is/are incorrect?

5.Identify the Q in the following diagram

6.If a DNA double helix contains total 6.6 × 109 bp then the length of this DNA will be

7.In prokaryotes, such as, E. coli the DNA in nucleoid is organised by

8.A typical nucleosome contains

9.The protein _____i_____ acquires the ____ii____ charge depending upon the abundance of  _____iii_____ amino acid residues called _____iv_____ and ____v____

i                ii               iii                   iv              v

10.The packaging of chromatin at higher level requires

11.In the experiments of transforming principle  by Frederick Griffith, the strain taken was of

12.All of the statement are true except?

13.Which of the statement is correct regarding the diagram given below

14.Assertion: Both the strands of DNA are not copied during transcription

Reason: If both strands act as a template, they would code for RNA molecule with different sequences and, and in turn, if they code for proteins, the sequence of amino acids in the proteins would be different

15.Name the following parts in the given diagram

16.Which of the following statement is not true for Mendel’s laws

17.The plasma membrane of the red blood cells has sugar polymers that protrude from its surface and the kind of sugar is controlled by the gene

18.The law of purity of gametes was formulated on the basis of

19.Law of Independent assortment can be explained by

20.What will be the probability of production of dwarf offsprings in a cross between two heterozygous tall pea plants?

21.Which of the following is true for the condition when plant YyRr is back crossed with the double recessive parent?

22.All are the behaviours of chromosomes except?

23.If linkage was known to Mendel then which of the following laws, he would not have been able to explain?

24.Genes located very close to one another on same chromosome tend to transmitted together are known as

25.The disease phenylketonuria is a typical example of

26.Down’s syndrome results in

27.Failure of cytokinesis after telophase stage of cell division results in an increase in a whole set of chromosomes in an organism, this phenomenon is often seen in

28.Study the karyotype and identify the disease phenomenon

29.The pedigree shows

30.In colour blindness the defect is due to the mutation in certain genes present in the

31.A molecule of which of the following will exhibit intermolecular hydrogen bonding ?

32.The final product (III) obtained in the reaction sequence is:

33.Among the following, which one is the strongest base?

34.The final product (IV) obtained in the reaction sequence is:

35.The oxidation of m-dinitrobenzene with alkaline potassium ferricyanide gives:

36.The product obtained in the following reaction is:

37.An aliphatic organic compound containing C, H and N reacts with dilute HCl to produce formic acid. It is reduced to dimethylamine by Pt or Ni, and undergoes an addition reaction with chlorine and sulphur. The compound can be:

38.How many isomeric amines with the formula C₇H₉N contain a benzene ring?

39.In the reaction C₂H₅NH₂ + HNO₂ →   the products obtained are:

40.In piperidine, the N atom involves the hybridization:

41.The product obtained in the following reaction is:

42.Consider the following structure for the anilinium ion:

Which of the following statements is correct regarding this structure?

43.The bond angles in methane (I), ammonia (II) and trimethylamine (III) increase in the order:

44.The major product obtained in the following reaction is:

45. The product obtained in the following reaction is:

46.The oxidation of aniline with per-acetic acid in the presence of acetic acid by refluxing gives:

47.The product obtained in the reduction is:

48.The electrolytic reduction of nitrobenzene in a strongly acidic medium produces:

49. Nitrobenzene can be converted into azoxybenzene by reduction with?

50. Which of the following statements is INCORRECT?

51.. An aldehyde on reaction with primary amine forms?

52.. Nitration of aniline gives m-nitro aniline, in strong acidic medium because?

53. Which one of the following compounds when heated with KOH and a primary amine gives carbylamine test?

54.

What is the major product of the following reaction?

55.The final product C of the following reaction is:

56.. The correct order of reactivity towards electrophilic substitution of the compounds aniline (I) benzene (II) and nitrobenzene (III) is:

57.Which of the following compounds will form secondary amine on reaction with LiAlH₄?

58.Find the compound which is more basic than aniline:

59. The following reduction takes place in presence of?

60.Which of the following is a tertiary amine?

61.In the circuit given below, the reading of the voltmeter V will be

62.In a step-up transformer, the turn ratio is 1:2. A Leclanche cell (e.m.f. 1.5V) is connected across the primary coil. The voltage developed in the secondary coil would be-

63.A 220 V, 50 Hz ac source is connected to an inductance of 0.2 H and a resistance of 20 ohms in series. What is the current in the circuit :

64.The core of a transformer is laminated to reduce energy losses due to  

65.An electric motor operating on a 60 V dc supply draws a current of 10 A. If the efficiency of the motor is 50%, the resistance of its winding is 

66.A step-down transformer is connected to 2400 volts line and 80 amperes of current is found to flow in output load. The ratio of the turns in primary and secondary coil is 20 : 1. If transformer efficiency is 100%, then the current flowing in primary coil will be 

67.The potential difference V and the current i flowing through an instrument in an ac circuit of frequency f are given by V=5cosω tV=5cosω t volts and I = 2 sin ωt amperes (where ω = 2πf). The power dissipated in the instrument is 

68.A generator produces a voltage that is given by V = 240 sin 120 t, where t is in seconds. The frequency and r.m.s. voltage are 

69.In a region of uniform magnetic induction B = 10^–2 tesla, a circular coil of radius 30 cm and resistance π² ohm is rotated about an axis that is perpendicular to the direction of B and which forms a diameter of the coil. If the coil rotates at 200 rpm the amplitude of the alternating current induced in the coil is :

70.In a LCR circuit having L = 8.0 henry, C = 0.5 μF and R = 100 ohm in series. The resonance frequency in radian per second is

71.The phase difference between the current and voltage of LCR circuit in series combination at resonance is 

72.In a series resonant circuit, the ac voltage across resistance R, inductance L and capacitance C are 5 V, 10 V and 10 V respectively. The ac voltage applied to the circuit will be 

73.The diagram shows a capacitor C and a resistor R connected in series to an ac source. V₁ and V₂ are voltmeters and A is an ammeter:

Consider now the following statements

I. Readings in A and V₂ are always in phase

II. Reading in V₁ is ahead in phase with reading in V₂

III. Readings in A and V₁ are always in phase

Which of these statements is/are correct?

74.In the circuit shown in figure neglecting source resistance the voltmeter and ammeter reading will respectively, will be 

75.

In the circuit shown in the figure, the ac source gives a voltage V=20cos(2000 ​t). Neglecting source resistance, the voltmeter and ammeter reading will be: 

76.The X-ray beam can be detected by

77.The energy of the EM wave is of the order of 15 KeV. To which part of the spectrum does it belong?

78.The ratio of the amplitude of the magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to

79.Which of the following statements is false for the properties of electromagnetic waves?

80.The S.I unit of displacement current is

81.The ratio of E0/H0 for a plane electromagnetic wave has the dimension of

82.. A capacitor is having a capacity of 2 pF. The electric field across the capacitor is changing with a value of 10^12 V/s. The displacement current is :

83.The electromagnetic radiations are in descending order of wavelength in the following sequences :

84.A plane electromagnetic wave of frequency 40 MHz travels in free space in the x-direction. At some point and at some instant, the electric field →E has its maximum value of 750 N/C in y-direction. The wavelength of the wave is

85.The wave impedance of free space is

86.The magnetic field between the plates of radius 12 cm separated by a distance of 4 mm of a parallel plate capacitor of capacitance 100 pF along the axis of plates having conduction current of 0.15 A is

87.A larger parallel plate capacitor, whose plates have an area of 1 m2 are separated from each other by 1 mm, is being charged at a rate of 25.8 V/s. If the plates has dielectric constant 10, then the displacement current at this instant is

88.A parallel plate capacitor with plate area A and separation between the plates d, is charged by a constant current i.  Consider a plane surface of area A/2 parallel to the plates and drawn symmetrically between the plates. The displacement current through this area is

89.. What is the energy density of electric field at a distance of 5 m from a point source of EM wave, if the electric field strength at that point be 100 V/m ?

90. Which of the following phenomenon proves the transverse nature of electromagnetic waves?