BITSAT (Birla Institute of Technology & Science Admission Test) Chemistry: Questions 111 - 117 of 180

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Question 111

Question

MCQ▾

Boron has two isotope boron -10 and boron -11 whose percentage abundance are 19.6 % and 80.4 % respectively. What is the average atomic mass of carbon?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 112

Question

MCQ▾

2-Methylbutane on reacting with bromine in the presence of sunlight gives mainly

Choices

Choice (4)Response

a.

2-Bromo-3-methylbutane

b.

2-Bromo-2-methylbutane

c.

l-Bromo-3-methylbutane

d.

l-Bromo-2-methylbutane

Question 113

Question

MCQ▾

Consider the following reaction,

Alkene՚s Hydrogenation Reaction

The product formed is -

Choices

Choice (4)Response

a.

CH3CH2CH2OH

b.

CH3GH (OH) CH3

c.

CH3CH2CH3

d.

Final Product of this Reaction - Choice D

Question 114

Question

MCQ▾

Methyl bromide is heated with zinc in closed tube product

Choices

Choice (4)Response

a.

Methane

b.

Ethane

c.

Methanol

d.

Ethylene

Question 115

Question

MCQ▾

The de – Broglie wavelength of grain of sand blown by a wind is?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 116

Question

MCQ▾

If be the threshold wavelength and wavelength light, the velocity of photo electrons ejected will be?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 117

Question

MCQ▾

Calculate the frequency and wave number of radiation with wavelength 480 nm?

Choices

Choice (4)Response

a.

b.

c.

d.

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