Ethylene diammine is ligand________?
A. mono dentate
B. Bi dentate
C. tri dentate
D. Poly dentate
Submitted by :- Jamil Ahmed
Formula of Galena is________?
A. PbS
B. HgS
C. AS2S3
D. FeS2
Submitted by :- Jamil Ahmed
Buildup of which acid in our muscles during sudden activity causes cramps.??
[A] Lactic acid
[B] Pyruvic acid
[C] Carbonic acid
[D] Oxalic acidt
Submitted by :- Muhammad Nawaz
Glycol is used to manufacture which of the following ?
[A] Nylon
[B] Artificial silk
[C] Terylene
[D] Rubber
[B] Artificial silk
[C] Terylene
[D] Rubber
Submitted by :- Muhammad Nawaz
What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper?
[A] There is a crackling sound.
[B] There is a violent explosion.
[C] There is no reaction.
[D] The paper ignites.
[B] There is a violent explosion.
[C] There is no reaction.
[D] The paper ignites.
Submitted by :- Muhammad Nawaz
Citric acid is present in free form in:
[A] Tamarind
[B] Milk
[C] Apple
[D] Lemon
[B] Milk
[C] Apple
[D] Lemon
Submitted by :- Muhammad Nawaz
The main constituent of natural gas is:
[A] Methane
[B] Ethane
[C] Butane
[D] Propane
Submitted by :- Muhammad Nawaz
The process by which milk is converted to curd is called:
[A] Pasteurization
[B] Vernalization
[C] Fermentation
[D] Retting
[B] Vernalization
[C] Fermentation
[D] Retting
Submitted by :- Muhammad Nawaz
Which acid is found in ant’s sting?
[A] Acetic acid
[B] Formic acid
[C] Ascorbic acid
[D] Citric acid
[B] Formic acid
[C] Ascorbic acid
[D] Citric acid
Submitted by :- Muhammad Nawaz