Match List - I with List - II: List - I: (a) $\mathrm{Ca(OCl)_{2}}$ (b) $\mathrm{CaSO}_{4} \cdot \frac{1}{2} \mathrm{H}_{2} \mathrm{O}$ (c) CaO (d) $\mathrm{CaCO}_{3}$ List - II: (i) Antacid (ii) Cement (iii) Bleach (iv) Plaster of Paris Choose the most appropriate answer from the options given below:

Calcium hypochlorite releases hypochlorous acid in water and is the active bleaching agent. is plaster of Paris, obtained by heating gypsum to about , and it sets back to gypsum with water. Quicklime, , is the lime component from which cement is made. neutralises excess hydrochloric acid in the sto…

JEE Main · 2021 · 18 Mar 2021 · Shift 1 · s-Block Elements

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Match List - I with List - II:

List - I:
(a)

Ca (OCl)_{2}

(b)

CaSO_{4} \cdot \frac{1}{2} H_{2} O

CaCO_{3}

List - II:
(i) Antacid
(ii) Cement
(iii) Bleach
(iv) Plaster of Paris

Choose the most appropriate answer from the options given below:

Answer: A → III, B → IV, C → II, D → I

Solution

Calcium hypochlorite releases hypochlorous acid in water and is the active bleaching agent.

CaS O_{4} \cdot \frac{1}{2} H_{2} O

is plaster of Paris, obtained by heating gypsum to about

393 K

, and it sets back to gypsum with water. Quicklime,

CaO

, is the lime component from which cement is made.

CaC O_{3}

neutralises excess hydrochloric acid in the stomach and is used as an antacid. The pairing is

Ca (OCl)_{2}

with bleach,

CaS O_{4} \cdot \frac{1}{2} H_{2} O

with plaster of Paris,

CaO

with cement and

CaC O_{3}

with antacid.

JEE Main · 2021 · 18 Mar 2021 · Shift 1 · Match the columns

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JEE Main · 2021 · 18 Mar 2021 · Shift 1 · s-Block Elements

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