NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1405 - 1412 of 1484

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Question 1405

Question

MCQ▾

The order of screening effect of the electrons of s, p, d and f orbitals of given shell of an atom on its outer shell electron is?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1406

Question

MCQ▾

Which of the following substance reduces a compound?

Choices

Choice (4)Response

a.

A dehydrating agent

b.

A hydrating agent

c.

A reducing agent

d.

An oxidizing agent

Question 1407

Question

MCQ▾

Which of the following solution is non-conductor of electricity?

Choices

Choice (4)Response

a.

Alcohol

b.

Glucose

c.

Sulphuric acid

d.

Both a. and b. are correct

Question 1408

Question

MCQ▾

Which of the following substances is known a n oxidizing agent?

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 1409

Question

MCQ▾

… is a strong acid?

Choices

Choice (4)Response

a.

Lactic acid

b.

Ascorbic acid

c.

Sulphuric acid

d.

Formic acid

Question 1410

Question

MCQ▾

in the above reaction, which species is reduced and how many electrons transferred?

Choices

Choice (4)Response

a.

Hydrogen,

b.

Hydrogen and oxygen

c.

Chromium,

d.

Oxygen,

Question 1411

Question

MCQ▾

what are A and B in the above reaction?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1412

Question

MCQ▾

Which of the following enzyme can convert glucose to ethyl alcohol?

Choices

Choice (4)Response

a.

Zymase

b.

Invertase

c.

Diastase

d.

Maltase

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