A compound with molecular formula CH2O2 is
A Carbohydrate
A Carboxylic acid
An alkanol
An ester
Correct answer is B
No explanation has been provided for this answer.
I only
II only
III only
I, II, III
Correct answer is C
No explanation has been provided for this answer.
CH3COONa
NH4Cl
NaCl
KCl
Correct answer is B
No explanation has been provided for this answer.
1.57 moldm-3
3.14 moldm-3
6.28 moldm-3
12.56 moldm-3
Correct answer is A
Saturated solution = 3503
mass of salt Z in saturated solution = 55.5g
Number of moles of salt = \(\frac{55.5}{101}\) = 0.55mole
3503 of solution contains 0.55mole
1000cm3 will contain \(\frac{1000 \times 0.55}{350}\) = 1.57mol/dm3
I and II only
II, III and IV only
I, II and III only
I, II. III and IV
Correct answer is B
All others except pressure would affect the equilibrium of the system.