Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

A liquid is in equilibrium with its vapour at it's boiling point. On the average, the molecules in two phases have equal

  • inter- molecular forces

  • potential energy

  • kinetic energy

  • total energy


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2.

For the chemical reaction 3X(g)+ Y(g) X3Y (g), the amount of X3Y at equilibrium is affected by

  • temperature and pressure

  • temperature only

  • pressure only

  • temperature, pressure and catalyst


B.

temperature only

Equilibrium is  affected by temperature and pressure due to change in heat as well as change in volume of substances.


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3.

The pair of compound which cannot exists together in solution is

  • NaHCO3 and NaOH

  • Na2CO3 and NHCO3

  • Na2CO3 and NaOH

  • NaHCO3 and NaCl


4.

Which has maximum number of atoms ?

  • 24 g of C

  • 56 g of Fe

  • 26 g of Al

  • 108 g of Ag


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5.

In homogeneous catalysis

  • the reactants, catalyst and products are in the same phase.

  • the catalyst and reactants are in the same phase.

  • the catalyst and products are in the same phase.

  • the reactants and products are in the same phase.


6.

Which of the following has the smallest number of molecules ?

  • 0.1 mole of CO2 gas

  • 11.2 L of CO2 gas at STP

  • 22 g of CO2 gas

  • 22.4 x 10mL of CO2 gas at STP


7.

4.6 x 1022 atoms of an element weigh 13.8g. The atomic weight of that element is

  • 290

  • 180

  • 34.4

  • 10.4


8.

Which one ofthe following compounds has sp2 hybridisation ?

  • CO2

  • SO2

  • N2O

  • CO


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9.

Identify the least stable ion amongst the following.

  • Li-

  • Be-

  • B-

  • C-


10.

Number of lone pair (s) in XeOF4 is/are

  • 0

  • 2

  • 1

  • 3


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