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
Q:

What are Aldehydes ?

A) Mild oxidising agents B) Strong oxidising agents
C) Strong reducing agents D) Mild reducing agents
 
Answer & Explanation Answer: C) Strong reducing agents

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 1061
Q:

Which of the following green house gases has the greatest heat-trapping ability?

A) Chlorofluoro carbon B) Methane
C) Carbon dioxide D) Nitrous oxide
 
Answer & Explanation Answer: A) Chlorofluoro carbon

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1034
Q:

Glycol is used to manufacture which of the following ?

A) Nylon B) Artificial silk
C) Terylene D) Rubber
 
Answer & Explanation Answer: C) Terylene

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1074
Q:

Sour taste of lemon is due to the presence of which of the following ?

A) Citric acid B) Acetic acid
C) Oxalic acid D) Formic acid
 
Answer & Explanation Answer: A) Citric acid

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1153
Q:

Chemical properties of isotopes .............

A) must be same B) must be different
C) need not be same D) need not be different
 
Answer & Explanation Answer: A) must be same

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 788
Q:

Atomic number of an atom gives the number of which of the following ?

A) electrons B) protons
C) neutrons D) neutrons and protons
 
Answer & Explanation Answer: B) protons

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1055
Q:

Limestone is a raw material used by which industry?

A) Aluminium B) Fertilizers
C) Cement D) Petrochemicals
 
Answer & Explanation Answer: C) Cement

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 948
Q:

Fire extinguishers emit which gas?

A) Carbon monoxide B) Chlorine
C) Carbon dioxide D) Nitrogen
 
Answer & Explanation Answer: C) Carbon dioxide

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 949