Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

11.

Number of moles of K2Cr2O7 reduced by one mole of Sn2+

  • 13

  • 3

  • 16

  • 6


12.

Radioactive isotope of hydrogen is :

  • Uranium

  • Deuterium

  • Tritium

  • None


13.

Electronk configuration of hydride ion is :

  • 1so

  • 1s1

  • 1s2

  • 1s12s1


14.

Suitable condition for melting of ice :

  • high temp. and high pressure

  • high temp. and low pressure

  • low temp. and low pressure

  • low temp. high pressure


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15.

Least ionised salt is :

  • KCl

  • AgCl

  • MgCl2

  • CaCl2


B.

AgCl

According to fajan's rule , AgCl is the most covalent compound among these , hence is the least ionic .


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16.

Number of unpaired electrons in O2 molecule is :

  • zero

  • one

  • two

  • four


17.

In exothermic reaction heat is :

  • given out

  • absorbed

  • not involved

  • given out or absorbed


18.

Element having maximum affinity is :

  • F2

  • Cl2

  • Br2

  • I2


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19.

Bond order in benzene is :

  • 1

  • 2

  • 1.5

  • none of these


20.

Element having maximum ionization energy :

  • Na

  • Li

  • K

  • Rb


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