Class XI

Relative molecular mass of Na2CO3 is
  1. 98
  2. 128
  3. 286
  4. 198
Elements with 1-3 valence electrons are called
  1. Metals
  2. Non-metals
  3. Nert gases
  4. Amphoteric oxides
 In order to get Sodium Sulfite (Na2SO3) as product, reactants shall be Sulfur Dioxide (SO2) and
  1. Na2CO3
  2. NaOH
  3. NaCl
  4. Both A and B
 All are examples of radicals except
  1. Hydroxide
  2. Sulphate
  3. Ammonium
  4. Aluminum
In Copper Oxide (CuO) and Carbon Monoxide (CO) reaction, reducing agent is
  1. CuO
  2. CO
  3. Cu
  4. CO2
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