NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 1029 - 1035 of 1258

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Question number: 1029

» Purification & Characteristics of Organic Compounds » Purification » Distillation

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MCQ▾

Question

There are several criteria for purity of organic compounds, out of these which one is considered best?

Choices

Choice (4) Response

a.

Colour

b.

Microscopic examination

c.

Mixed melting point

d.

Melting point

Question number: 1030

» Purification & Characteristics of Organic Compounds » Purification » Sublimation

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MCQ▾

Question

Sublimation is a process in which a solid?

Choices

Choice (4) Response

a.

Changes into vapour from

b.

Changes into liquid form

c.

Changes into another allotropic form

d.

None of the above

Question number: 1031

» Equilibrium » Ionic Equilibrium » Hydrolysis of Salts and pH of Their Solutions,

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MCQ▾

Question

The hydrogen ion concentration of a solution is . What will be the hydroxyl ion concentration of solution?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1032

» Equilibrium » Ionic Equilibrium » pH Scale

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MCQ▾

Question

Value of weakly acidic solution will be approximately?

Choices

Choice (4) Response

a.

9

b.

6

c.

3

d.

5

Question number: 1033

» Equilibrium » Ionic Equilibrium » Weak and Strong Electrolytes

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MCQ▾

Question

Which of the following is a strong electrolyte?

Choices

Choice (4) Response

a.

KOH

b.

c.

d.

All a. , b. and c. are correct

Question number: 1034

» Surface Chemistry » Adsorption » Adsorption of Gases on Solids

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MCQ▾

Question

1.30-litre gas at 2atm and 300k in litre container is exposed to 4g of solid surface After complete adsorption the pressure of in reduced by 30%. Calculate value of x/m.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1035

» Classification of Elements & Periodicity » S, P, D and F Block Elements,

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MCQ▾

Question

An element of atomic number 29 belongs to?

Choices

Choice (4) Response

a.

p- block

b.

f- block

c.

d.

S- block