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Sodium stearate salt is used:

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Important Questions on Some Important Chemical Compounds

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Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 11 - Some Important Chemical Compounds>Practice Exercise>Q 119

The principle of cleaning by soap is-

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Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 11 - Some Important Chemical Compounds>Practice Exercise>Q 120

Solutions of three enzymes were prepared namely lipase, trypsin and amylase, in order to remove stains from a piece of cloth. Out of these three enzyme solutions, only lipase could completely remove the stain. This indicates that the stain was due to-

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IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 11 - Some Important Chemical Compounds>Practice Exercise>Q 123
The presence of sulphur in gunpowder-
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IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 11 - Some Important Chemical Compounds>Practice Exercise>Q 124

Chromium oxide is used as an ingredient in paints to obtain-

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Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 11 - Some Important Chemical Compounds>Practice Exercise>Q 125
Calcium Ammonium Nitrate (CAN) is a popular nitrogen fertilizer because it is:
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IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 11 - Some Important Chemical Compounds>Practice Exercise>Q 126
A fertilizer contains 20% nitrogen by mass. To provide a fruit tree with an equivalent of 1kg of nitrogen, the quantity of fertilizer required is-
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IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 11 - Some Important Chemical Compounds>Practice Exercise>Q 127

Turpentine oil in paints is used as a-

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IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 11 - Some Important Chemical Compounds>Practice Exercise>Q 128
Which one of the following substances is most likely to be used as soap?