NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1470 - 1477 of 1484

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Question 1470

Question

MCQ▾

What is ‘P’ in the given reaction

Find the P in Reaction

Choices

Choice (4)Response

a.

Ethyne

b.

Ethane

c.

Propane

d.

Ethene

Question 1471

Question

MCQ▾

Which of the following compound is known to be ‘Amphiprotic’ ?

Choices

Choice (4)Response

a.

b.

Water

c.

Ammonia

d.

Both b. and c. are correct

Question 1472

Question

MCQ▾

In which of the following process the non – metallic impurities are converted into respective volatile oxides which get removed?

Choices

Choice (4)Response

a.

Reduction process

b.

Smelting

c.

Calcination

d.

Roasting

Question 1473

Question

MCQ▾

The ores which are subjected to froth floatation are?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1474

Question

MCQ▾

Bran is an alloy of …

Choices

Choice (4)Response

a.

b.

and

c.

and

d.

and

Question 1475

Question

MCQ▾

The IUPAC name of given compound is

Find the IUPAC Name

Choices

Choice (4)Response

a.

3 - methyl butan – 2 – ol

b.

2 – methyl butan – 3 – ol

c.

Butanol

d.

Pentanol

Question 1476

Question

MCQ▾

Which of the following is formed when nitric acid oxidizes sulphur?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1477

Question

MCQ▾

Which of the following types of ores are subjected to roasting?

Choices

Choice (4)Response

a.

Carbonate ores

b.

Oxide ores

c.

Sulphide ores

d.

Silicate ores

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