Chemistry MCQs

Page No. 29

Which one of the following compounds usually smells like garlic ?


aP2O3

✓


bP2O5

✖


cH3PO3

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dAll have same smell

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View Answer P2O3

The composition of brown ring in nitrate test is_________________?


aFeSO4.NO

✓


bFeSO4.NO2

✖


cFeSO4.NO3

✖


dFeSO4.N2O

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View Answer FeSO4.NO

Which one of the following is not the use of graphite ?


aLead pencils

✖


bAbrasive

✓


cLubricant

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dElectrode of electrolytic cell

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View Answer Abrasive

Which of the following does not contain phosphorus ?


aYolk of egg

✖


bBone

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cNerves

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dSteel

✓


View Answer Steel

Which one of following is not a property of pure quartz ?


aColoured solid

✓


bBrittle

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cHard

✖


dAll of the above

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View Answer Coloured solid

Phosphene gas will be produced if phosphorous acid is subjected to___________________?


aoxidation

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bReduction

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cDecomposition

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dboth B & C

✓


View Answer both B & C

The most electronegative element among the following is_________________?


aSb

✖


bN

✓


cAs

✖


dP

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View Answer N

Which one of the followings possesses melting point below 0°C?


aNitrogen

✓


bPhosphorous

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cCarbon

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dBismuth

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View Answer Nitrogen

When sulphuric acid is treated with ethanol sulphuric acid behaves like________________?


aan acid

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ba dehydrating agent

✓


can oxidizing agent

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das sulphonating agent

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View Answer a dehydrating agent

Arsenic oxides are removed by passing through_________________?


aFerric hydroxide

✓


bSodium hydroxide

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cCalcium hydroxide

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dAluminium hydroxide

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View Answer Ferric hydroxide

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