Class 11 Chemistry 2022 HA MCQs Test

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

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)

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

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

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

In lead storage battery electrolyte is:

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

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)

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

Identify the species with maximum bond angle:

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

Which of the following is NOT a state function?

Which one is conductor but not malleable?

A solution of HCl having pH=4 will be:

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 Concentration Units does NOT depends on Temperature?