Chemistry MCQs

Page No. 26

Which of the following oxides of iodine is used for quantitative analysis of CO ?


aI2O4

✖


bI4O2

✖


cI2O5

✓


dAll are equally useful

✖


View Answer I2O5

Bleaching powder is an example of________________?


aNormal salt

✖


bDouble salt

✖


cMixed salt

✓


dcomplex

✖


View Answer Mixed salt

Which is the strongest acid ?


aHCIO

✖


bHCIO2

✖


cHCIO3

✖


dHCIO4

✓


View Answer HCIO4

Which of the following represents the correct electronic configuration of VII A group elements in the ground state ?


ans2p2

✖


bns2p4

✖


cns2p5

✓


dns2p6

✖


View Answer ns2p5

Which one of the following is the weakest acid in water__________________?


aHF

✓


bHCl

✖


cHBr

✖


dHI

✖


View Answer HF

Which of the following statements is incorrect about fluorine_______________?


afluorine is restricted to -1 oxidation state

✖


bfluorine follows octet rule and as well as extended octet rule

✖


cfluorine has lowest dissociation energy among the halogens

✖


dBoth B and C

✓


View Answer Both B and C

The colour of chlorine gas is_______________?


apale yellow

✖


bfreenish yellow

✓


creddish brown

✖


dgrayish black

✖


View Answer freenish yellow

Which is the paramagnetic oxide of chlorine ?


aCl2O7

✖


bCl2O6

✖


cClO2

✖


dAll

✓


View Answer All

Which one of the following halogens is present in Teflon________________?


aI2

✖


bBr2

✖


cCl2

✖


dF2

✓


View Answer F2

Indicate the correct statement__________________?


aCl2 is the strongest oxidizing agent

✖


bI2 is a volatile solid

✓


cBr2 is more reactive than Cl2

✖


dCl2 is insoluble in water

✖



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