Question 34

Match Column I with Column II

Name: Match Column I with Column II
Uploaded: 2026-05-16T11:41:58.683185+05:30
Duration: 1 min 11 s
Description: Match Column I with Column II

Solution

A - III : Soda ash is the common name for anhydrous sodium carbonate. It is widely used in glass manufacturing and as a water softener.

B - IV : Chlorophyll is the green pigment in plants responsible for photosynthesis. Its central metal atom is a magnesium ion, which is held in a porphyrin ring.

C - II : Slaked lime or calcium hydroxide is mixed with water to create whitewash. When applied to walls, it reacts with atmospheric CO2 to form a hard, white layer of calcium carbonate.

D - I: Calcium sulphate hemihydrate CaSO4.1/2H20, known as Plaster of Paris, is used in dentistry for making moulds and in ornamental plasterwork because it expands slightly upon setting, capturing fine details.

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