NEET Chemistry: Questions 333 - 337 of 677

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Question number: 333

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

MCQ▾

Question

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

Choices

Choice (4) Response

a.

3

b.

1

c.

0

d.

2

Question number: 334

» Basic Concepts in Chemistry » Molar Mass

MCQ▾

Question

Choose the correct statements -

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

(2) For a reaction, PmQn+RoSp → products

If amount of PmQn reacted = W1 gm and amount of RoSp reacted = W2 gm then

w1w2 = EquivalentwtofRoSpEquivalentwtofPmQn

(3) For a reaction PmQn+RoSp → products

If amount of PmQn reacted = W1 gm and amount of RoSp reacted = W2 gm then

w1w2 = EquivalentwtofPmQnEquivalentwtofRoSp

(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, 2 and 3 are correct

b.

1 and 2 are correct

c.

1 and 3 are correct

d.

2 and 4 are correct

Question number: 335

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

MCQ▾

Question

The formula of which of the substance is known as tailing of mercury?

Choices

Choice (4) Response

a.

Hg2O

b.

Hg(NO3)2

c.

HgO

d.

HgS

Question number: 336

» P-Block Elements Group 13 to 18 » Group 17 » Oxides and Oxoacids of Halogens

MCQ▾

Question

Which has maximum pH in aqueous solution?

Choices

Choice (4) Response

a.

NaClO3

b.

NaClO2

c.

NaClO

d.

NaClO4

Question number: 337

» Atomic Structure » Heisenberg Uncertainty Principle

MCQ▾

Question

Uncertainty in position of a minute particle of mass 25g in space is 1 05 m. The uncertainty in its velocity (in m/s) is

Choices

Choice (4) Response

a.

2.1 ×1034

b.

2.1 ×1034

c.

2.1 ×1028

d.

2.1 ×1028

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