NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1465 - 1472 of 1484

Access detailed explanations (illustrated with images and videos) to 1484 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time!

View Sample Explanation or View Features.

Rs. 500.00 or

How to register?

Question number: 1465

» Chemistry » Metals and Non-Metals

Edit
MCQ▾

Question

………is uses as flux in the extraction of iron?

Choices

Choice (4)Response

a.

Feldspar

b.

Limestone

c.

Flint

d.

Silica

Question number: 1466

» Chemistry » Carbon and Its Compounds

Edit
MCQ▾

Question

Which of the following product is formed when ethanol reacts with sodium?

Choices

Choice (4)Response

a.

Sodium ethanol

b.

Sodium ethoxide

c.

Sodium ethanoate

d.

Sodium acetate

Question number: 1467

» Chemistry » Acids, Bases and Salts

Edit
MCQ▾

Question

Which one of the following equation in the regarding acid strength acid strength (or) equilibrium constant?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1468

» Chemistry » Metals and Non-Metals

Edit
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

Edit
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

Edit
MCQ▾

Question

What is ‘P’ in the given 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

Edit
MCQ▾

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

Edit
MCQ▾

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

Developed by: