The following factors affect the solubility of a solid in a given solvent except
nature of solute
nature of solvent
pressure
temperature
Correct answer is C
No explanation has been provided for this answer.
A substance is said to be impure if
its melting point range is wide
it dissolves in water with difficult
it has a low melting point
it is coloured
Correct answer is A
No explanation has been provided for this answer.
Which of the following acids would readily react with CaCO3 to liberate CO2?
CH3COOH
H2SO4
H2SO3
HNO3
Correct answer is B
H2SO4(aq)+CaCO3(aq)→CaSO4(aq)+CO2(g)+H2O(l)
The aqueous solution which has pH > 7 is
FeCI3(aq)
CuSO4(aq)
KNO3(aq)
Na2CO3(aq)
Correct answer is D
No explanation has been provided for this answer.
Density
Pressure
Temperature
Volume
Correct answer is C
No explanation has been provided for this answer.