Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Hybridization present in ClF3 is :

  • sp2

  • sp3

  • dsp2

  • sp3d


2.

Number of electrons surrounding Kr in KrF2 is :

  • 10

  • 6

  • 4

  • 8


3.

H - I - O bond angle in H2O2 :

  • 90o

  • 180o

  • 109.5o

  • 94.8o


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4.

Which has smallest size ?

  • Na+

  • Mg2+

  • Ne

  • O2-


B.

Mg2+

Among isoelectronic species , size decreases with increase in nuclear charge .Hence , the order of size is _

Mg2+ < Na+ < O2-


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5.

Electron deficient molecule is :

  • CCl4

  • PCl5

  • BF3

  • SF6


6.

Which is the correct relation for diffusion of gases :

  •  d

  •  d

  •  1d

  • none of these


7.

Hydrolysis of sodium acetate gives :

  • acidic solution

  • basic solution

  • amphoteric solution

  • neutral solution


8.

Isotopic pair is :

  • 20X4021X40

  • 20X40 , 20X41

  • 40X2041X20

  • None


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9.

Atomic number of an element is equal to the number of :

  • protons

  • neutrons

  • electrons

  • protons + neutrons


10.

Cationic hydrolysis gives the following solution :

  • acidic

  • basic

  • neutral

  • amphoteric


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