TET-Ctet-Chemistry-set-21

Chemistry MCQs for all Competitive Exams SET-21
Chemistry Multiple Choice Questions

Chemistry Multiple Choice Questions(MCQ)
रसायन विज्ञान बहुविकल्पीय प्रश्न

Welcome to our exclusive collections of chemistry multiple choice questions with answers. All questions are of multiple choice type.In these MCQs sets we are going to share most important questions related to chemistry. These questions are very helpful for those candidates and aspirants who are preparing for the various government and non government exam as well as in interview.
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Chemistry MCQs for all Competitive Exams SET-21
रसायन विज्ञान बहुविकल्पीय प्रश्न


Question : 1-10

Question : 1

Which of the following is used to prepare Cl2 gas at room temperature from concentrated HCI?

[A].   MnO2
[B].   H2S
[C].   KMnO4
[D].   Cr2O3


Question : 2

Which one of the following is a covalent crystal?

[A].   Ice
[B].   Rock salt
[C].   Dry ice
[D].   Quartz


Question : 3

Which of the following is not an ore of magnesium?

[A].   Carnallite
[B].   Dolomite
[C].   Calamine
[D].   Sea water


Question : 4

Which one of the following DOES NOT involve coagulation?

[A].   Formation of delta region
[B].   Clotting of blood by the use of ferric chloride
[C].   Peptization
[D].   Treatment of drinking water by potash alum


Question : 5

Which of the following has the highest bond order?

[A].   N2
[B].   O2
[C].   He2
[D].   H2


Question : 6

Which one is not a constituent of nucleic acid?

[A].   Uracil
[B].   Guanidine
[C].   Phosphoric acid
[D].   Ribose sugar


Question : 7

Which of the following gives an aldehyde on dry distillation?

[A].   Calcium acetate + calcium benzoate
[B].   Calcium formate + calcium acetate
[C].   Calcium benzoate
[D].   Calcium acetate


Question : 8

Which of the following does not give benzoic acid on hydrolysis?

[A].   phenyl cyanide
[B].   benzoyl chloride
[C].   benzyl chloride
[D].   methyl benzoate


Question : 9

A white crystalline salt A reacts with dilute HCI to liberate a suffocating gas B and also forms a yellow precipitate. The gas B turns potassium dichromate acidified with dilute H2SO4 to a green coloured solution C. A, B and C are respectively ______.

[A].   Na2S2O3, SO2,Cr2 (SO4)3
[B].   Na2SO3,SO2, Cr2 (SO4)3
[C].   Na2SO4,SO2, Cr2 (SO4)3
[D].   Na2S, SO, Cr2 (SO4)3


Question : 10

An octahedral complex is formed when hybrid orbitals of the following type are involved

[A].   sp3
[B].   dsp2
[C].   d2sp3
[D].   sp2d2





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