NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1468 - 1475 of 1484

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Question number: 1468

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

which substance can acts as basic flux in the above reaction?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1469

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which of the following metal is used in manufacture of solder?

Choices

Choice (4) Response

a.

Copper

b.

Lead

c.

Tin

d.

Both b. and c. are correct

Question number: 1470

» Chemistry » Carbon and Its Compounds

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MCQ▾

Question

What is ‘P’ in the given reaction

Find the P in reaction

Find the P in Reaction

Find the P in reaction

Choices

Choice (4) Response

a.

Ethyne

b.

Ethane

c.

Propane

d.

Ethene

Question number: 1471

» Chemistry » Acids, Bases and Salts

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Question

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 number: 1472

» Chemistry » Metals and Non-Metals

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Question

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 number: 1473

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

The ores which are subjected to froth floatation are?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1474

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Bran is an alloy of ………. .

Choices

Choice (4) Response

a.

b.

and

c.

and

d.

and

Question number: 1475

» Chemistry » Carbon and Its Compounds

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MCQ▾

Question

The IUPAC name of given compound is

Find the IUPAC name

Find the IUPAC Name

Find the IUPAC name

Choices

Choice (4) Response

a.

3 - methyl butan – 2 – ol

b.

2 – methyl butan – 3 – ol

c.

Butanol

d.

Pentanol

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