Test Index

NEET 2022 Model Paper 2

Question : 85 of 200

Marks: +1, -0

Suspension of slaked lime in water is known as lime water
Crude sodium chloride obtained by crystallisation of brine solution contains $\mathrm{MgSO}_4$
Beryllium salts are rarely hydrolysed
Gypsum contains a lower percentage of $\mathrm{Ca}$ than in plaster of Paris

Solution:

- Suspension of slaked lime in water is known as milk of lime

- Crude sodium chloride obtained by crystallisation of brine solution contains

\mathrm{CaSO}_4, \mathrm{Na}_2 \mathrm{SO}_4

and

\mathrm{MgCl}_2

- Beryllium salts are easily hydrolysed

- Gypsum :

\mathrm{CaSO}_4 \cdot 2 \mathrm{H}_2\mathrm{O}

Plaster of Paris:

\mathrm{CaSO}_4 \cdot \; \frac{1}{2} \mathrm{H}_2\mathrm{O}

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