Sawaal
1
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
Related Questions
Q:

__________gives hardness to stainless steel.

A) Zinc B) Carbon
C) Lead D) Tin
 
Answer & Explanation Answer: B) Carbon

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 995
Q:

The most pure form of carbon among the options is

A) Anthracite B) Lampblack
C) Graphite D) Wood Charcoal
 
Answer & Explanation Answer: A) Anthracite

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1183
Q:

What is the product formed when sodium bicarbonate is heated strongly?

A) Sodium Carbonate B) Sodium Hydroxide
C) Sodium Peroxide D) Sodium Monoxide
 
Answer & Explanation Answer: A) Sodium Carbonate

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1324
Q:

What happens in an oxidation reaction?

A) Protons are lost. B) Electrons are lost
C) Neutrons are lost. D) Electrons are gained.
 
Answer & Explanation Answer: B) Electrons are lost

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 880
Q:

Which among the following has the maximum density?

A) Water B) Ice
C) Ethylene D) Acetone
 
Answer & Explanation Answer: A) Water

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1468
Q:

Bauxite is an ore/mineral of

A) Aluminium B) Beryllium
C) Lead D) Tin
 
Answer & Explanation Answer: A) Aluminium

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1086
Q:

The mass of proton and mass of ________ is same.

A) Neutron B) Electron
C) Isoprone D) Alpha particle
 
Answer & Explanation Answer: A) Neutron

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 1094
Q:

The compound used in prickly-­heat powder to prevent excessive sweating is

A) Boric acid B) Phosphoric acid
C) Carbonic acid D) Sulphonic acid
 
Answer & Explanation Answer: A) Boric acid

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1394