NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1820 - 1827 of 2029

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Question 1820

Question

MCQ▾

When metallic oxide react with water then what happens?

Choices

Choice (4)Response

a.

Neutral reaction

b.

Alkalis form

c.

Acid form

d.

It explodes

Passage

Image Showing a, B and C Beakers

Answer the question base on the image

Question 1821 (1 of 3 Based on Passage)

Question

MCQ▾

If A is dissolved in B, C is formed so A is

Choices

Choice (4)Response

a.

Solution

b.

Solute

c.

Solvent

d.

None of the above

Question 1822 (2 of 3 Based on Passage)

Question

MCQ▾

If B is dissolved in A, C is formed. C is

Choices

Choice (4)Response

a.

Solution

b.

Solvent

c.

Solute

d.

All of the above

Question 1823 (3 of 3 Based on Passage)

Question

MCQ▾

If B is dissolved in A, C is formed. A is

Choices

Choice (4)Response

a.

Solution

b.

Solute

c.

Solvent

d.

All of the above

Question 1824

Question

MCQ▾

Name the most lustrous liquid.

Choices

Choice (4)Response

a.

Mercury

b.

Salty water

c.

Sweet water

d.

Pure water

Question 1825

Question

MCQ▾

Effect of cooling on a saturated water solution

Choices

Choice (4)Response

a.

Solubility of solid remains same

b.

Solubility of solid some time increases and decreases

c.

Solubility of solid decreases

d.

Solubility of solid increases

Question 1826

Question

MCQ▾

Chemical formula of oxygen

Choices

Choice (4)Response

a.

2O

b.

2O2

c.

O2

d.

O

Question 1827

Question

MCQ▾

What is filtration?

Choices

Choice (4)Response

a.

Technique of separation of an insoluble solid from a liquid by heating

b.

Technique of separation of soluble solids from a liquid by heating the mixture

c.

Technique of separation of an insoluble solid from a liquid using a filter paper and funnel arrangement

d.

None of the above

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