wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following metals float in water when it is reacted with cold water?


A

Gold (Au)

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

Zinc (Zn)

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

Iron (Fe)

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

Calcium (Ca)

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

The correct option is D

Calcium (Ca)


Different metals react with water differently.Some metals(like sodium ,potassium) react with cold water while some metals (like magnesium) requires steam i.e. hot water to react.

Metals react with water to give hydroxides and hydrogen gas.

Calcium reacts less vigorously with water to form hydrogen gas. The metal starts floating because the bubbles of hydrogen gas formed stick to the surface of the metal.


flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Chemical Properties
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon