JEE Chemistry Solved Question Paper 2004 | Previous Year Papers | Zigya

Subject

Chemistry

Class

JEE Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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1.

Which is most basic in character ?

  • CsOH

  • KOH

  • NaOH

  • LiOH


2.

The mass of BaCO3 produced when excess CO2 is bubbled through a solution of 0.205 mole Ba(OH) is :

  • 81 gm

  • 40.5 gm

  • 20.25 gm

  • 162 gm


3.

Would gaseous HCl be considered as an Arrhenius acid ?

  • Yes

  • No

  • Not known

  • Gaseous HCl does not exist


4.

The degree of hydrolysis in hydrolytic equilibrium

A- + H2 HZ + OH-

at salt concentration of 0.001 M is :

(Ka = 1 × 10-5)

  • 1 × 10-3

  • 1 × 10-4

  • 5 × 10-4

  • 1 × 10-6


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5.

No two electron can have the same values of ........ quantum numbers.

  • one

  • two

  • three

  • four


6.

A compound contains 54.55% carbon, 9.09% hydrogen, 36.36% oxygen. The empirical formula of this compound is:

  • C3H5O

  • C4H8O2

  • C2H4O2

  • C2H4O


7.

pH of 1M NH3 aqueous solution is (Kb = 1.8 × 10-5)

  • 11.13

  • 12.5

  • 13.42

  • 11.55


8.

Equivalent weight of an acid :

  • depends on the reaction involved

  • depends upon the number of oxygen atoms present

  • is always constant

  • None of the above


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9.

The compound in which cation is isoelectronic with anion is :

  • NaCl

  • CsF

  • NaI

  • K2S


10.

The paramagnetic molecule at ground state among the following is :

  • H2

  • O2

  • N2

  • CO


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