Class 11 Chemistry 2022 HA MCQs Test

Total number of Sigma and Pi bonds in Ethyne CH≡CH are:

In a mixture containing 44g each of CO₂, SO₂, SO₃ and Cl₂ gases, which of the following will have highest partial pressure according to Dalton's Law? (where molar masses CO₂=44, SO₂=64, SO₃=80, Cl₂=71)

Which of the following will contain lowest vapor pressure at 50°C?

A solution of HCl having pH=4 will be:

In lead storage battery electrolyte is:

Which of the following is NOT a state function?

Kc=0.04 at 723K for following reaction
PCl_5(g) ⇌ PCl_3(g) + Cl_2(g)
Kp of the reaction will be:
where (R=0.082 atm dm³ mol^-1 K^-1)

According to Graham's law which one has highest rate of diffusion? (M. Wt, S=32, O=16, H=1)

If frequency of Photon is 4×10¹⁵ Hz, then its energy will be: (h=6.626×10^-34Js)

Which one is conductor but not malleable?

Which of the following Concentration Units does NOT depends on Temperature?

According to Le-chatelier's Principle, in an exothermic reaction, what should be done to temperature of system to obtain maximum product at equilibrium?

According to Moseley's law, when metals having large atomic number will be used as an anode then it will produce X-rays of:

No. of atoms of oxygen present in 500g of KClO₃ is (M.Wt, K=39, Cl=35.5, O=16):

Magnesium reacts with Sulphur to produce MgS. How many grams of MgS can be made from 24g of Mg with excess of Sulphur by the reaction Mg + S → MgS (M.Wt, Mg=24, S=32)

Electric current can pass through graphite in one direction but not through other direction of crystal, such a property is called:

Identify the species with maximum bond angle: