Chemistry MCQs

Page No. 27

Photographic plates are coated with a thin film of _________________?


aAgNO3

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bAgI

✖


cAgCl

✖


dAgBr

✓


View Answer AgBr

Which of the following is not use of compounds of Fluorine________________?


aSbF3 is used for manufacture of pottery

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bSodium fluoroacetate is a rat poison

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cCu F2 is used in ceramic industry

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dNone of the above

✓


View Answer None of the above

Bleaching powder is not used for bleaching________________?


aCotton

✖


bCostly fabrics

✓


cLinen

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dPaper pulb

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View Answer Costly fabrics

The chemical formula of sodium hypochlorite is________________?


aNaCLO

✓


bNaCLO2

✖


cNaCLO3

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dNaCLO4

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View Answer NaCLO

Which of the halogen can displace other three elements ?


aFluorine

✓


bChlorine

✖


cIodine

✖


dBromine

✖


View Answer Fluorine

Consider the following reaction- 3Cl2 + 6NaOH ? NaClO3 + 5NaCl + 3H2O This reaction is_______________?


aDisplacement reaction

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bDouble displacement reaction

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cDisproportionation reaction

✓


dReduction reaction

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Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ?


aCl2O

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bClO2

✓


cCl2O6

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dCl2O7

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View Answer ClO2

Bromine can be liberated from KBr solution by the action of _______________?


aIodine solution

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bChlorine

✓


cNaCl

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dKI

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View Answer Chlorine

The halogen having highest electron affinity is_____________________?


aFluorine

✖


bChlorine

✓


cBromine

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dIodine

✖


View Answer Chlorine

The halogen which reacts very slowly with halogen is________________?


aFluorine

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bChlorine

✖


cBromine

✖


dIodine

✓


View Answer Iodine

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