Class XI

Fractional distillation can
  1. not separate liquids whose boiling points are close
  2. separate liquids whose boiling points are close
  3. separate liquids whose boiling points are very high
  4. All of these
Chemical formula of rouge pigment is
  1. Fe2O3
  2. Fe3O4
  3. FeSO4
  4. FeNO3
 In order to form Copper(II) Hydroxide, number of Hydroxyl ions to gain stability with one Copper ion will be
  1. 1
  2. 2
  3. 4
  4. 5
 Consider equation: Zn+2(aq) + 2OH-(aq) → Zn(OH)2(s). precipitate of Zinc Hydroxide will be of
  1. Green color
  2. Blue color
  3. Brown color
  4. White color
Liquid-liquid miscible mixtures can be separated through
  1. Chromatography
  2. Fractional distillation
  3. Filteration
  4. Both A and B
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