NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1396 - 1404 of 1484

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Question 1396

Question

MCQ▾

What are and in the above reaction?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1397

Question

MCQ▾

… defined the scale.

Choices

Choice (4)Response

a.

Somerfield

b.

Arrhenius

c.

Bohr

d.

Sorenson

Question 1398

Question

MCQ▾

What would be the value of a solution, when it turns blue litmus to red litmus?

Choices

Choice (4)Response

a.

8

b.

10

c.

9

d.

6

Question 1399

Question

MCQ▾

Which of the following acid dissociates when dissolved in water?

Choices

Choice (4)Response

a.

An oxalic acid

b.

A hydra acid

c.

A weak acid

d.

A strong acid

Question 1400

Question

MCQ▾

Which of the following acid is present in apple majorly?

Choices

Choice (4)Response

a.

Tartaric acid

b.

Malic acid

c.

Citric acid

d.

Formic acid

Question 1401

Question

MCQ▾

When Copper metal reacts with nitric acid what will be the product formed?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1402

Question

MCQ▾

The maximum ionization enthalpy in a period is shown by?

Choices

Choice (4)Response

a.

Chalcogens

b.

Halogens

c.

Inert gases

d.

Alkali metal

Question 1403

Question

MCQ▾

The electronegativity of are in the order of?

Choices

Choice (4)Response

a.

N > Si > C > P

b.

Si < P < C < N

c.

Si > P > C > N

d.

P > N > Si > C

Question 1404

Question

MCQ▾

An element of atomic number 29 belongs to?

Choices

Choice (4)Response

a.

p block

b.

d block

c.

f block

d.

s block

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