Chemistry in Every Day Life
- The metal compound commonly found in Sindhoor or Kumkum is based on
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Pb3O4 commonly known as red lead is used as sindhoor.
Correct Option: B
Pb3O4 commonly known as red lead is used as sindhoor.
- Which one among the following is not a mixture?
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Graphite is an allotrope of carbon. Hence this is an element not mixture.
Correct Option: A
Graphite is an allotrope of carbon. Hence this is an element not mixture.
- Which of the following is not a nitrogenous fertilizer ?
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Except Ca(CN)2 all are nitrogenous fertilizers.
Correct Option: A
Except Ca(CN)2 all are nitrogenous fertilizers.
- Commonly used antiseptic 'Dettol' is a mixture of
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The mixture of chloroxylenol and terepineol are dettol which is used as antiseptic.
Correct Option: D
The mixture of chloroxylenol and terepineol are dettol which is used as antiseptic.
- In chemical terms, what are alums used for purifying water for drinking purposes ?
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Alum is double sulphates having the composition M2SO4. M2(SO4)3.24H2O.
Where M stands for monovalent basic radicals. Alums have Germicide properties and thus used in purification of water.Correct Option: C
Alum is double sulphates having the composition M2SO4. M2(SO4)3.24H2O.
Where M stands for monovalent basic radicals. Alums have Germicide properties and thus used in purification of water.
