NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 247 - 254 of 1259

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Question number: 247

» P-Block Elements Group 13 to 18 » Group 14 » Allotropes of Carbon

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MCQ▾

Question

Fire extinguishers contain a bottle of sulphuric acid and?

Choices

Choice (4)Response

a.

b.

c.

d.

Any carbonate

Question number: 248

» P-Block Elements Group 13 to 18 » Group 15 » Nitrogen

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MCQ▾

Question

Ammonia will be obtained in?

Choices

Choice (4)Response

a.

b.

c.

Both a. and b. are correct

d.

None of the above

Question number: 249

» P-Block Elements Group 13 to 18 » Group 13 » Boron

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MCQ▾

Question

Orthoboric acid behaves as weak monobasic acid giving and?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 250

» P-Block Elements Group 13 to 18 » Group 14 » Allotropes of Carbon

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MCQ▾

Question

Graphite is good conductor of electricity because it contains?

Choices

Choice (4)Response

a.

Strong C = C bonds

b.

Bonded electrons

c.

Strong C-C bonds

d.

Mobile electrons

Question number: 251

» P-Block Elements Group 13 to 18 » Group 13 » Boron

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Question

A mixture of ethyl alcohol and boric acid burns with green edged flame due to the formation of?

Choices

Choice (4)Response

a.

H3BO3

b.

c.

d.

Question number: 252

» Basic Concepts in Chemistry » Empirical and Molecular Formulae

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Question

5.70 gm of metal carbonate was dissolved in 50ml of 2 (N) . The excess acid was neutralized by 10 ml of 1 (N) . What is the equivalent wt. of metal?

Choices

Choice (4)Response

a.

40

b.

33.33

c.

19

d.

30

Question number: 253

» P-Block Elements Group 13 to 18 » Group 17 » Introduction

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MCQ▾

Question

Which of the following bond is weaker among halogens?

Choices

Choice (4)Response

a.

F-F

b.

Br-Br

c.

I-I

d.

Cl-Cl

Question number: 254

» Basic Concepts in Chemistry » Molar Mass

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MCQ▾

Question

Choose the correct statements

(1) If W1 gm of the element X combines with w2 gm of then the equiv. wt. of

(2) If metallic zinc or iron be added to a solution of silver nitrate or copper sulphate, finely

Divided silver or copper is precipitated then

(3) If W1 gm. of the element ‘X’ combines with w2 gm. of then the equiv. wt. of X =

(4) If metallic zinc or iron be added to a solution of silver nitrate or copper sulphate, finely

Divided silver or copper is precipitated then

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

Choices

Choice (4)Response

a.

1 and 3 are correct

b.

1,2 and 3 are correct

c.

1 and 2 are correct

d.

2 and 4 are correct

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