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Q:

In modern periodic table while going from top to bottom in a group ______.

 

A) size of an atom increases B) size of an atom decreases
C) ionisation energy of an atom increases D)  size and ionisation energy of an atom increases

Answer:   D)  size and ionisation energy of an atom increases



Explanation:
Subject: Chemistry
Exam Prep: Bank Exams
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Which of the following is added to iron to make iron hard and strong?

A) Zinc B) Copper
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Answer & Explanation Answer: C) Carbon

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Which of the following is used to get relief when you have been stung by a honeybee?

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The chemical formula of Sodium Carbonate is

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Answer & Explanation Answer: D) Na2CO3

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The state of matter can be changed into another state by changing the

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Answer & Explanation Answer: D) Temperature

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Acid rain is caused by release of ___ and___ into the air.

A) Carbon dioxide and Carbon monoxide B) Sulphur dioxide and nitrogen oxides
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Answer & Explanation Answer: B) Sulphur dioxide and nitrogen oxides

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___ is not a chemical change.

A) Cooking an egg B) Melting an ice cube
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Answer & Explanation Answer: B) Melting an ice cube

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Which of the following is not correct with reference to Bio-sand Water Filter?

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Answer & Explanation Answer: D) High quality water is always assured

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The movement of water molecules through the plasma membrane is called ______.

 

A) Osmosis B) Sedimentation
C) Precipitation D) Transpiration
 
Answer & Explanation Answer: A) Osmosis

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