Consider the given chemical reaction

$C a + H_{2} O \to C a (O H)_{2} + H_{2} (↑)$

The total number of water molecules required for the balancing of above chemical reaction is

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

\frac{1}{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
2
The given reaction is balanced as follows:

$C a + 2 H_{2} O \to C a (O H)_{2} + H_{2} (↑)$

Therefore, two water molecules are required to balance the reaction.

Hence, the correct answer is option (b).

Suggest Corrections

Similar questions

H_{2} O

M n O_{4}^{⊖} + {F e}^{2 +} ⟶ {M n}^{2 +} + {F e}^{3 +}

N F_{3} (g) + H_{2} O (g) \to H F (g) + N O (g) + N O_{2} (g)

N F_{3}

H_{2} O

H {N O}_{3} + C a {(O H)}_{2} \to C a {({N O}_{3})}_{2} + H_{2} O

N a C l + A g {N O}_{3} \to A g C l + N a {N O}_{3}

B a {C l}_{2} + H_{2} {S O}_{4} \to B a {S O}_{4} + H C l

H N O_{3} + C a (O H)_{2} ⟶ C a (N O_{3})_{2} + H_{2} O

Balance a chemical reaction and give reasons for your answer:

i.Na +H2O-Na OH+H2

Join BYJU'S Learning Program