A. 30 c.c acid and 30 c.c base
B. 20 c.c acid and 25 c.c base
C. 15 c.c acid and 35 c.c base
D. 35 c.c acid and 15 c.c base
Related Mcqs:
- Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because_________________?
A. The strong base and strong acid reacts completely
B. The salt formed does not hydrolyse
C. Only OH- and H+ ions react in every case
D. The strong base and strong acid reacts in aqueous solution - Which of the following holds good for a solution obeying Raoult’s law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing) ?
A. ΔH = 1 (+ ve) and Δ V = -ve
B. ΔH = 0
C. ΔV = 0
D. Both B. and C. - If an ideal solution is formed by mixing two pure liquids in any proportion, then the ___________________ of mixing is zero?
A. Enthalpy
B. Volume
C. Both A. & B.
D. Neither A nor B - Gibbs free energy of mixing at constant pressure and temperature is always__________________?
A. 0
B. ∞
C. + ve
D. – ve - On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes_________________?
A. 1
B. 8
C. 4
D. 2 - At higher temperature, molal heat capacities of most of the gases (at constant pressure) ____________ with increase in temperature?
A. Increases
B. Decreases
C. Remains unchanged
D. Increases linearly - Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ______________ with the increase of reduced temperature?
A. Decreases
B. Increases
C. Remains constant
D. Decreases logarithmically - In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in_____________?
A. Enhanced COP
B. Decreased COP
C. No change in the value of COP
D. Increased or decreased COP; depending upon the type of refrigerant - Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in__________________?
A. Increased COP
B. Same COP
C. Decreased COP
D. Increased or decreased COP; depending upon the type of refrigerant - In general, the specific heats of aqueous solutions _____________ with increase in the concentration of the solute?
A. Increase
B. Decrease
C. Remain unchanged
D. None of these
