which of the following compounds is used for water

Which of the following compounds is used for water softening?

A. $$C{a_3}{\left( {P{O_4}} \right)_2}$$

B. $$N{a_3}P{O_4}$$

C. $$N{a_6}{P_6}{O_{18}}$$

D. $$N{a_2}HP{O_4}$$

Answer : $$N{a_6}{P_6}{O_{18}}$$

Solution :
Sodium hexametaphosphate $$\left( {N{a_6}{P_6}{O_{18}}} \right),$$ commercially called 'calgon' is used for water softening.

Releted MCQ Question on
Inorganic Chemistry >> Hydrogen

Releted Question 1

$$HCl$$ is added to following oxides. Which one would give $${H_2}{O_2}$$ ?

A. $$Mn{O_2}$$

B. $$Pb{O_2}$$

C. $$Ba{O_2}.8{H_2}O$$

D. $$N{O_2}$$

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Releted Question 2

Heavy water is

A. $${H_2}{}^{18}O$$

B. water obtained by repeated distillation

C. $${D_2}O$$

D. water at $${4^ \circ }C$$

View Answer

Releted Question 3

The oxide that gives hydrogen peroxide on treatment with a dilute acid is :

A. $$Pb{O_2}$$

B. $$N{a_2}{O_2}$$

C. $$Mn{O_2}$$

D. $$Ti{O_2}$$

View Answer

Releted Question 4

Hydrogen gas will not reduce :

A. heated cupric oxide

B. heated ferric oxide

C. heated stannic oxide

D. heated aluminium oxide

View Answer

Which of the following compounds is used for water softening?

Releted MCQ Question on
Inorganic Chemistry >> Hydrogen

$$HCl$$ is added to following oxides. Which one would give $${H_2}{O_2}$$ ?

Heavy water is

The oxide that gives hydrogen peroxide on treatment with a dilute acid is :

Hydrogen gas will not reduce :

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Hydrogen

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Which of the following compounds is used for water softening?

Releted MCQ Question on Inorganic Chemistry >> Hydrogen

$$HCl$$ is added to following oxides. Which one would give $${H_2}{O_2}$$ ?

Heavy water is

The oxide that gives hydrogen peroxide on treatment with a dilute acid is :

Hydrogen gas will not reduce :

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Releted MCQ Question on
Inorganic Chemistry >> Hydrogen

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Hydrogen