download Mastguru Android App

Question Detail

The most abundant element in the earth's crust is ?

  • Aluminium
  • Nitrogen
  • Silicon
  • Oxygen

Answer: Option D

Similar Questions :

1. The ejection of electrons when a metal surface is irradiated is known as

  • Black body radiation
  • Photoelectric effect
  • Zeeman effect
  • Atomic spectrum

Answer: Option B

2. Rare gases are

  • mono atomic
  • di atomic
  • tri atomic
  • None of above

Answer: Option A

Explanation:

Rare gases are mono atomic.

3. Biogas majorly contains ?

  • Ethane
  • Methane
  • Hydrogen
  • CO

Answer: Option B

4. Which acid is present in lemon ?

  • marlic acid
  • citric acid
  • lactic acid
  • tartaric acid

Answer: Option B

Explanation:

citric acid is present in lemon.

5. Which gas is filled in refrigerators ?

  • Chlorofluorocarbon
  • Acetylene
  • Methane
  • Butane

Answer: Option A

Read more from - Chemistry Questions Answers
Post a comment

  • pawan parmar 9 years ago

    most abundant element in earth crust is oxygen.

Mastguru Youtube Channel

Videos @mastguru

Free useful videos - Subscribe Mastguru
 

Get Free Current Affairs and Govt Jobs Alerts in your mailbox

To Appreciate Our Effort, Please Like Us

Quantitative Aptitude
English Aptitude
Reasoning Aptitude
Computer Awareness
General Knowledge
Current Affairs
IT Officer Aptitude
Programming Aptitude
Latest Govt Jobs