NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1369 - 1376 of 1484

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Question number: 1369

» Chemistry » Acids, Bases and Salts

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MCQ▾

Question

We can increase the of water by adding ……………. Compound from the given?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1370

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

What is the compound formed when sodium bicarbonate reacts with sulphuric acid?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1371

» Chemistry » Acids, Bases and Salts

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MCQ▾

Question

Select one substance from the following which is not a salt?

Choices

Choice (4) Response

a.

Lead sulphide

b.

Zinc nitrate

c.

Sodium Chloride

d.

Slaked lime

Question number: 1372

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

Which one of the following belongs to representative group of elements in the periodic table?

Choices

Choice (4) Response

a.

Chromium

b.

Aluminium

c.

Lanthanium

d.

Argon

Question number: 1373

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

Which of the following group has maximum number of elements in Mendeleev’s periodic table?

Choices

Choice (4) Response

a.

IV

b.

I

c.

II

d.

III

Question number: 1374

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

On moving down the group from F to I (Fuorine to Iodine), which of the property decrease?

Choices

Choice (4) Response

a.

Electronegativity

b.

Oxidising agent

c.

Ionization energy

d.

All a. , b. and c. are correct

Question number: 1375

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

An elements ‘x’ with atomic number 114 has recently been discovered. The name of thin elements is?

Choices

Choice (4) Response

a.

Ununfortium

b.

Flerovium

c.

Eka-lead

d.

Bohrium

Question number: 1376

» Chemistry » Acids, Bases and Salts

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MCQ▾

Question

Which of the following is the weakest acid?

Choices

Choice (4) Response

a.

b.

c.

d.

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