Sawaal

 Chemistry Questions

Popular Latest Rated
Q:

Which of the following gases are responsible for the greenhouse gas effect on Earth?

A) Water Vapour and Carbon dioxide B) Carbon dioxide and Nitrogen
C) Oxygen and Methane D) Ozone and Methane
 
Answer & Explanation Answer: A) Water Vapour and Carbon dioxide

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1327
Q:

___ is amphoteric in nature.

A) SO2 B) CaO
C) ZnO D) N2O
 
Answer & Explanation Answer: C) ZnO

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1326
Q:

Which one of the following statements is correct?

A) The oxidation number for hydrogen is always zero. B) The oxidation number for hydrogen is always + 1.
C) The oxidation number for hydrogen is always -1. D) Hydrogen can have more than one oxidation number.
 
Answer & Explanation Answer: D) Hydrogen can have more than one oxidation number.

Explanation:

Hydrogen has two possible oxidation numbers: +1 and -1.

-1 in case of hydrides.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1326
Q:

A) Mineral B) Tribe
C) Grass D) Town
 
Answer & Explanation Answer: C) Grass

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1324
Q:

Which of the following is an unsaturated Hydrocarbon?

A) Butane B) Pentane
C) Ethyne D) Propane
 
Answer & Explanation Answer: C) Ethyne

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1322
Q:

Which of the following is usually not an air­pollutant?

A) Hydrocarbons B) Sulphur dioxide
C) Carbon dioxide D) Nitrous oxide
 
Answer & Explanation Answer: D) Nitrous oxide

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

0 1320
Q:

In which of the following solution the concentration of H+ ion is the maximum?

A) pH 6 B) pH 8
C) pH 5 D) pH 9
 
Answer & Explanation Answer: C) pH 5

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 1319
Q:

By volume, 78% of air is _______________

A) nitrogen B) oxygen
C) hydrogen D) helium
 
Answer & Explanation Answer: A) nitrogen

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 1319