341. A ‘limiting reactant’ is the one, which decides the __________ in the chemical reacation.
Equilibrium constant
Conversion
Rate constant
None of these
✅ The correct answer is option B.
Statiometery MCQs
342. In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute.
Increase
Decrease
Remain unchanged
None of these
✅ The correct answer is option B.
343. Heat of solution in a system in which both solute and solvent are liquids is termed as
Heat of solvation
Heat of hydration
Standard integral heat of solution
Heat of mixing
✅ The correct answer is option D.
345. 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 ) ?
ΔH = 1 (+ ve)and Δ V = -ve
ΔH = 0
ΔV = 0
Both B and C
✅ The correct answer is option D.
346. __________ kg of CaCO₃ on heating will give 56 kg of CaO.
56
100
144
1000
✅ The correct answer is option B.
347. Pick out the wrong conversion formula for the conversion of weight units :
1 tonne = 1000 kg = 22.046 lbs
1 U.S. ton = 907 kg = 0.907 tonne = 0.893 ton
1 ton = 2240 lbs = 1016 kg = 1.016 tonnes = 1.12 U.S. tons
None of these
✅ The correct answer is option D.
348. The molecular velocity of a real gas is proportional to (where, T = absolute temperature of the gas).
√T
T
T²
1/√T
✅ The correct answer is option A.
349. Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half, will result in __________ in the volume of the gas.
No change
Doubling
L/4th reduction
Four fold increase
✅ The correct answer is option B.
350. Internal energy is independent of the __________ for an ideal gas.
Pressure
Volume
Both A & B
Neither A nor B
✅ The correct answer is option C.