NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 126 - 132 of 1258

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Question number: 126

» S-Block Elements Group 1 and 2 » Industrial Uses » Limestone

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MCQ▾

Question

If CO 2 is passed in excess into lime water, the milkiness first formed disappears due to?

Choices

Choice (4) Response

a.

formation of soluble magnesium hydroxide

b.

formation of soluble calcium carbonate

c.

formation of volatile calcium derivative

d.

reversal of original reaction

Question number: 127

» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide

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MCQ▾

Question

What will the product when dry ammonia is passed over sodium at 400 0 C in absence of air?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 128

» S-Block Elements Group 1 and 2 » Industrial Uses » Limestone

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MCQ▾

Question

Mortar is mixture of?

Choices

Choice (4) Response

a.

and

b.

, silica, water

c.

and silica

d.

, water

Question number: 129

» S-Block Elements Group 1 and 2 » Electronic Configuration

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MCQ▾

Question

Which of the following alkali metals are used in photoelectric cell?

Choices

Choice (4) Response

a.

K and Cs

b.

Cs and Na

c.

Na and Li

d.

Cs and Rb

Question number: 130

» S-Block Elements Group 1 and 2 » General Introduction

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MCQ▾

Question

Which of the following alkali metals are most abundant in nature?

Choices

Choice (4) Response

a.

Li and Na

b.

Cs and Li

c.

Li and K

d.

K and Na

Question number: 131

» S-Block Elements Group 1 and 2 » General Introduction

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MCQ▾

Question

Which one of the following ore is a mineral for magnesium?

Choices

Choice (4) Response

a.

Iceland spar

b.

Carnotite

c.

Barytes

d.

Dolomite

Question number: 132

» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide

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MCQ▾

Question

Which of the following is true about sodium?

Choices

Choice (4) Response

a.

NaOH solution does not react with chlorine.

b.

NaOH is primary standard in volumetric analysis

c.

Manganous hydroxide is soluble in excess of NaOH solution.

d.

NaOH is used in concentration of bauxite ore