Class XI

 Valency of magnesium is
  1. 1
  2. 2
  3. -1
  4. -2
Molecular weight of propane (C3H8) is
  1. 44.095g/mol
  2. 40.01g/mol
  3. 41.01g/mol
  4. 46.02g/mol
Gases denser than air do not include
  1. Chlorine
  2. Carbon dioxide
  3. Hydrogen chloride
  4. Ammonia
Melting point of silica (SiO2) is
  1. 1650 °C
  2. 1660 °C
  3. 1700 °C
  4. 1760 °C
Evaporation occurs only
  1. after boiling
  2. after extreme cooling
  3. at surface of a liquid
  4. if boiling occurs at atmospheric pressure
Time Elapsed

HR : MIN : SEC
Question Answered
0
Score out of 100
0

Get Started!

we provide the best
services to our students

AmazingCounters.com Views

 

LKG - 12th

Rs 1,999  Annual
Plan
TOP