Which of the following reaction is correct when water reacts with metal?

2 K + 2 H_{2} O \to 2 K O H + H_{2} ↑

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

2 N a + 2 H_{2} O \to 2 N a O H + H_{2} ↑

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

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

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

All of the above

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

Open in App

Solution

The correct option is D All of the above
Potassium reacts vigorously with cold water to form potassium hydroxide and hydrogen gas. This reaction is very vigorous and gives out lilac colored flames. With Sodium cold water to form sodium hydroxide and hydrogen gas. When cold water reacts with calcium produce milky turbid solution called Calcium hydroxide.

Suggest Corrections

Similar questions

C l_{2} + 2 N a B r \to B r_{2} + 2 N a C l

2 N a + O_{2} \to N a_{2} O

2 K + 2 H_{2} O \to H_{2} + 2 K O H

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

H_{2}

8 g m

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

2 K + 2 H_{2} O \to 2 K O H + H_{2}

2.0 m o l e s

C H_{3} C O O^{-} N a^{+} + 2 H_{2} O \to C H_{3} C H_{3} + 2 C O_{2} + H_{2} + 2 N a O H

Join BYJU'S Learning Program