Question

7. Which of the following is 'quicklime'?
(a) CaO
(b) Ca(OH)2
(c) CaCO3
(d) CaCl2.6H20
Slaked lime is prepared by adding water to
(a) bleaching powder (b) lime water
(c) milk of lime (d) quicklime​

Answer 1

ANSWER:

The chemical formula of quicklime is CaO. The chemical name of quicklime is calcium oxide.

Hence the answer is option (a).

When quick lime is added to water, it reacts to form slaked lime (calcium hydroxide). Hence the answer is option (d).

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Answer 2

Heyy dear♥️

Which of the following is 'quicklime'?

(a) CaO ☑️

(b) Ca(OH)2

(c) CaCO3

(d) CaCl2.6H20

→ Quicklime is the common name for calcium oxide (CaO) obtained by heating limestone.

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Slaked lime is prepared by adding water to

(a) bleaching powder

(b) lime water

(c) milk of lime

(d) quicklime ☑️

→ Adding water to the quicklime produces slaked lime (calcium hydroxide) in an exothermic reaction.

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