Chemistry Objective Question in Hindi

Chemistry Objective Question in Hindi. We covered all the Chemistry Objective Question in Hindi in this post for free so that you can practice well for the exam.

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Chemistry Objective Questions in Hindi for Students

Chlorine oxidizes sodium thiosulphate to form

(A) Na₂SO3

(B) Na₂O

(C) Na₂SO4

(D) Na₂CO3

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Which one of the following statements regarding helium is incorrect?

(A) It is used to fill gas in balloons instead of hydrogen because it is lighter and noninflammable.

(B) It is used as a cryogenic agent for carrying out experiments at low temperatures

(C) It is used to produce and sustain powerful superconducting magnets.

(D) It is used in gas-cooled nuclear reactors.

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Choose the incorrect formula out of the four compounds for an element X given below.

(A) X₂Cl3

(B) X₂03

(C) X2(SO4)3

(D) XPO4

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Which compound has a planar structure?

(A) XeF4

(B) XeOF2

(C) XeO₂F2

D) XeO4

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Which one of the following reactions of the Xenon compound is not feasible?

(A) XeO3+6HF → XeF6+3H₂O

(B) 3XeF4+6H₂O → 2Xe+XeO3+12 HF +1.5 O2

(C) 2XeF2+2H₂O2 → Xe+4HF + O₂

(D) XeF6+RbF→ Rb(XeF7)

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The correct order of solubility in water for He, Ne, Ar, Kr, and Xe is

(A) He > Ne > Ae > Kr> Xe

(B) Xe > Kr> Ar> Ne > He

(C) Ne > Ar> Kr> He > Xe

(D) Ar > Ne > He> Kr> Xe

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In XeF2, XeF4, and XeF6 the number of lone pairs on Xe are respectively?

(A) 2, 3, 1

(B) 1, 2, 3

(C) 4, 1, 2

(D) 3, 2, 1

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Euchlorine is produced by heating a mixture of

(A) KCI +conc. H₂SO4

(B) KCl+conc. HCI

(C) K₂CIO3+conc. H₂SO4

(D) KClO3+conc. HCI

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Which is the strongest acid in the following?

(A) HCIO4

(B) H₂SO3

(C) H₂SO4

(D) HCIO3

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The least number of oxyacids are formed by

(A) nitrogen

(B) sulfur

(C) fluorine

(D) chlorine

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Which one of the following is responsible for the depletion of the ozone layer in the upper strata of the atmosphere?

(A) Polyhalogens

(B) Ferrocene

(C) Fullerneces

(D) Freons

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In which of the following molecules are all the bonds not equal?

(A) NF3

(B) CIF3

(C) BF3

(D) AlF3

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Tincture iodine is

(A) an aqueous solution of I₂

(B) a solution of I₂ in aqueous KI

(C) alxoholoc solution of I₂

(D) an aqueous solution

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F₂ formed by reaction K₂MnF6 with

(A) SbF5

(B) MnF3

(C) KSbF6

(D) MnF4

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For electron affinity of halogens which of the following is correct?

(A) Br > F

(B) F > Cl

(C) Br > Cl

(D) F > I

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Which of the following hydrogen halide is the most basic?

(A) HF

(B) HCI

(C) HBr

(D) HI

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Which of the following is true about ClO2?

(A) It is paramagnetic

(B) It dimerizes in the liquid phase

(C) It is a linear molecule

(D) It is very reactive

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