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Silver chloride is stored in dark colored bottles because
It is a photochemical which decompose on exposure to light.
It is corrosive in nature.
it is caustic in nature.
None of the above.
An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change?
Ammonium hydroxide solution
Acetic acid is a weak acid
Acetic acid does not dissociate completely
Acetic acid dissociates completely.
It can react with strong bases.
It can react with weak bases.
Na2CO3 . 10H2O is
When hydrogen chloride gas is prepared on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to
absorb the evolved gas
moisten the gas
absorb moisture from the gas
absorb Cl– ions from the evolved gas
Sodium hydroxide is used
as an antacid
in manufacture of soap
as a cleansing agent
in alkaline batteries
Why are copper vessels washed with acids?
Copper vessels get tarnished due to copper oxide layer formed over them. The acid dissolves the green coating of basic copper carbonate .
Acids are good to wash copper vessels
The function of quick lime in soda lime mixture is to
Absorb moisture present in soda lime
Increase the efficiency of soda lime
Increase the pH of soda lime
Take part in reaction with NaOH
Lime water is
Some fruits like mango, lemon, raw grapes, orange, etc., have a sour taste due to the presence of: