NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 977 - 981 of 1258

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Question number: 977

» Equilibrium » Equilibrium Constants (Kp and Kc)

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MCQ▾

Question

Equivalent amounts of and are heated in a closed till equilibrium is obtained if of the hydrogen can be converted to HI, the at this temperature is?

Choices

Choice (4) Response

a.

4

b.

64

c.

16

d.

0.25

Question number: 978

» Solutions » Mole Fraction

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MCQ▾

Question

What is the mole fraction of ethylacohol in a solution of total volume 95ml, prepared by adding 50ml of (density to 50 ml of water?

Choices

Choice (4) Response

a.

0.3124

b.

0.236

c.

0.8576

d.

0.362

Question number: 979

» Equilibrium » Characteristics of Equilibrium Involving Physical Process

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MCQ▾

Question

. In this formation of ammonia, when temperature is increased the value of equilibrium constant will be?

Choices

Choice (4) Response

a.

Largely increased

b.

Kept constant

c.

Increased

d.

Decreased

Question number: 980

» Surface Chemistry » Colloidal State » Preparation and Properties of Colloids

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MCQ▾

Question

Freshly prepared ferric hydroxide on treatment with a small amount of ferric chloride solution at once forms a dark reddish brown solution. The process involved here is?

Choices

Choice (4) Response

a.

Electrophoresis

b.

Peptization

c.

Dispersion

d.

Suspension

Question number: 981

» Classification of Elements & Periodicity » Present Form of the Periodic Table

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MCQ▾

Question

The statement that is not correct for periodic classification of element is?

Choices

Choice (4) Response

a.

For transition elements, the 3d – orbitals are filled with electrons after 3p – orbitals and before 4s – orbitals.

b.

Non – metallic elements are less in number than metallic elements

c.

63 elements were known when Mendeleev presented the periodic table

d.

The properties of the elements are periodic function of their atomic number