Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

A solution made by dissolving 40 g NaOH in 1000 g of H2O is

  • 1 molar

  • 1 normal

  • 1 molal

  • None of these


C.

1 molal

A solution made by dissolving 40 g NaOH in 1000 g of H2O is


2.

The correct statement with regard toH2+andH2-is

  • both H2+ and H2- are equally stable

  • both H2+ and H2- do not exist

  • H2- is more stable than H2+

  • H2+ is more stable than H2-


D.

H2+ is more stable than H2-

The correct statement with regard toH2+andH2-is


3.

Hybridisation states of C in CH3+ and CH3- are

  • sp2, sp3

  • sp3, sp2

  • sp, sp2

  • sp2, sp


A.

sp2, sp3

Hybridisation states of C in CH3+ and CH3- are


4.

An sp3-hybrid orbital contains

  • 14 s- character

  • 12 s- character

  • 23 s-character

  • 34 s-character


A.

14 s- character

An sp3-hybrid orbital contains


5.

Which of the following has the maximum number of unpaired electrons?

  • V3+

  • Fe2+

  • Mn2+

  • Cu+


C.

Mn2+

Which of the following has the maximum number of unpaired electrons?


6.

Which one of the following complexes is outer orbital complex?

  • [Co(NH3)6]3+

  • [Mn(CN)6]4+

  • [Fe(CN)6]4-

  • [Ni(NH3)6]2+


D.

[Ni(NH3)6]2+

Which one of the following complexes is outer orbital complex?


7.

0.1 mol HCl is equal to

  • 3.65 g

  • 36.5 g

  • 18 g

  • 1.8 g


A.

3.65 g

0.1 mol HCl is equal to


8.

10-6 M NaOH is diluted 100 times. The pH of the diluted base is

  • between 7 and 8

  • between 5 and 6

  • between 6 and 7

  • between 10 and 11


A.

between 7 and 8

10-6 M NaOH is diluted 100 times. The pH of the diluted base is


9.

For the reaction,

H2O(l)H2O(g)

at 373 K and 1 atm pressure

  • H = 0

  • E = 0

  • H = TS

  • H = E


C.

H = TS

For the reaction,

H2O(l)H2O(g)

at 373 K and 1 atm pressure


10.

The geometry of XeF6 is

  • planar hexagon

  • regular octahedron

  • distorted octahedron

  • square bipyramid


C.

distorted octahedron

The geometry of XeF6 is