BITSAT (Birla Institute of Technology & Science Admission Test) Chemistry: Questions 131 - 139 of 180

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Question 131

Question

MCQ▾

The number of spectral lines that are possible when electrons in shell in different hydrogen atoms return to the 2nd shell is?

Choices

Choice (4)Response

a.

15

b.

12

c.

14

d.

10

Question 132

Question

MCQ▾

The mass of photon wavelength 1 nm is?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 133

Question

MCQ▾

A gas mixture contains helium and methane by volume. What is the percentage by mass of methane mixture?

Choices

Choice (4)Response

a.

b.

75 %

c.

80.03 %

d.

20.25 %

Question 134

Question

MCQ▾

Calculate the mass of (actual mass of) on molecule of carbon dioxide

Choices

Choice (4)Response

a.

b.

c.

d.

Question 135

Question

MCQ▾

Calculate the uncertainity in velocity of a cricket ball of mass if the uncertainity in its position is of the order of ?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 136

Question

MCQ▾

Calculate the energy of a photon of violet light with wavelength

Choices

Choice (4)Response

a.

b.

c.

d.

Question 137

Question

MCQ▾

How many molecules of water and oxygen atoms are present in of water?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 138

Question

MCQ▾

Number of p-electrons in bromine atom is?

Choices

Choice (4)Response

a.

17

b.

7

c.

15

d.

12

Question 139

Question

MCQ▾

Which of the following carbocations will show highest number of hyperconjugation forms?

Choices

Choice (4)Response

a.

b.

Carbocations with Highest Number of Hyperconjugation: Choice B

c.

Carbocations with Highest Number of Hyperconjugation: Choice C

d.

Carbocations with Highest Number of Hyperconjugation: Choice D

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