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Subjects
Science State Board
Class 6
Chemistry in Everyday life
Textbook questions
1.
Choose the best answer I
Exercise condition:
3
m.
1
.
Soaps were originally made from
foam booster
animal fats and vegetable oils
chemicals extracted from the soil
proteins
2
.
The saponification of a fat or oil is done using __________ solution for hot process.
potassium hydroxide
sodium chloride
sodium hydroxide
hydrochloric acid
3
.
Gypsum is added to the cement for
making paste
fast setting
delayed setting
hardening
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