Class XI

 While calculating empirical formula, simplest ratio is obtained by dividing
  1. By smallest number
  2. By largest number
  3. By relative atomic mass
  4. By relative mass of a covalent compound
 To balance Al(OH)3 + HNO3 → Al(NO3)3 + H2O, number of H2O molecules produced will be
  1. 1
  2. 4
  3. 6
  4. 7
Easy to shape materials like ceramics are used as
  1. conductors
  2. .insulators
  3. electrodes
  4. catalysts
Suspensions can be successfully separated through
  1. simple or fractional distillation
  2. decanting and centrifugation
  3. boiling points
  4. chromatographs
Ammonia NH3 is an example of
  1. ionic bonds
  2. covalent bonds
  3. metallic bonds
  4. dative bonds
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