NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 330 - 334 of 1258

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Question number: 330

» P-Block Elements Group 13 to 18 » Group 16 » Ozone

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MCQ▾

Question

Ozone is use for purification of water because?

Choices

Choice (4) Response

a.

it does not leave any foul smell

b.

it kills bacteria, fungi

c.

It dissociates and release oxygen

d.

All a. , b. and c. are correct

Question number: 331

» Atomic Structure » Rules for Filling Electrons in Orbitals

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MCQ▾

Question

for a given value of n (principal quantum number), the energy of different subshells can be arranged in the order of:

Choices

Choice (4) Response

a.

f > p > d > s

b.

s > f > p > d

c.

f > d > p > s

d.

s > p < d > f

Question number: 332

» Basic Concepts in Chemistry » Mole Concept

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MCQ▾

Question

In the final answer of the expression . The number of significant figures is

Choices

Choice (4) Response

a.

4

b.

3

c.

2

d.

1

Question number: 333

» P-Block Elements Group 13 to 18 » Group 17 » Interhalogen Compounds

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MCQ▾

Question

The number of lone pairs of electrons present in central atom of ClF3 is?

Choices

Choice (4) Response

a.

2

b.

0

c.

3

d.

1

Question number: 334

» Basic Concepts in Chemistry » Molar Mass

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MCQ▾

Question

Choose the correct statements -

(1) Double decomposition method is based on the law of equivalent.

(2) For a reaction, → products

If amount of reacted = gm and amount of reacted = gm then

=

(3) For a reaction → products

If amount of reacted = gm and amount of reacted = gm then

=

(4) 1 equivalent of oxygen = 16 gm

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1 and 2 are correct

b.

2 and 4 are correct

c.

1 and 3 are correct

d.

1,2 and 3 are correct