Q:

Which are two chemicals used to purify water?

A) Chlorine & Fluorine	B) Fluorine & Iodine
C) Chlorine & Hydrogen peroxide	D) Fluorine & Iodine

Answer & Explanation Answer: C) Chlorine & Hydrogen peroxide

Explanation:

Removing the contaminents if any in the water which causes harm to our health is involved in the purifying of water.

This process involves chemicals. Chloramines, Hydrogen peroxide, Iodine are the chemicals which are used in purifying water.

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Q:

The hard Shell of an egg was dissolved in HCL. The egg was then placed in a concentration solution of NaCl. What will happens ______

A) The egg will shrink	B) The egg will swell
C) The egg will become harder	D) There will be hardly any visible change

Answer & Explanation Answer: A) The egg will shrink

Explanation:

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Q:

Which is the largest epic in world ?

Answer

Mahabharat

Workspace

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Subject: Longest, Shortest, Deepest

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Q:

Improve the bracketed part of the sentence.

I understood a good deal of (what was going on) about me.

A) that which was going on	B) what has had been going on
C) what that has been going on	D) no improvement

Answer & Explanation Answer: D) no improvement

Explanation:

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Q:

Which of the statement(s) about the reaction given below is/are INCORRECT?

2PbO (s) + C (s) ⟶ 2Pb (s) + CO2 (g)

I. Lead is getting reduced.

II. Carbon is getting reduced.

III. Lead oxide is getting reduced.

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: A) Only I and II

Explanation:

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Q:

Agha khan cup is associated with

A) Football	B) Tennis
C) Cricket	D) Hockey

Answer & Explanation Answer: D) Hockey

Explanation:

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Q:

Improve the bracketed part of the sentence.

The naughty boy made (many a mischief).

A) much mischief	B) many mischief
C) many a mischiefs	D) no improvement

Answer & Explanation Answer: A) much mischief

Explanation:

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Q:

What is the International Date Line ?

A) It is the equator	B) It is the 0 degrees longitude
C) It is the 90 degrees longitude	D) It is the 180 degrees longitude

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