Class XI

 It cannot be split into simpler substances through chemical processes. It is
  1. A matter
  2. An element
  3. A metal
  4. An atom
Overall energy change can be calculated by
  1. Subtracting energy taken in when bonds are broken from energy given out when bonds are made
  2. Adding energy taken in when bonds are broken and energy given out when bonds are made
  3. Subtracting energy given out when bonds are made from energy taken in when bonds are broken
  4. Multiplying all enthalpy changes
Copper can have a charge of
  1. 2 or 4
  2. 4 or 6
  3. 3 or 5
  4. 2 or 1
Volatility refers to the
  1. Rigidity of substances
  2. Malleability
  3. Ductability
  4. Melting point of substances
Digestive fluids in stomach has a pH of
  1. 0
  2. 2
  3. 3
  4. 4
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