Advertisements
Advertisements
प्रश्न
Write the chemical equation for the following reaction:
Calcium metal reacts with water.
Advertisements
उत्तर
\[\ce{\underset{\text{Calcium}}{Ca}+\underset{\text{Water}}{2H2O}->\underset{\text{Calcium hydroxide}}{Ca(OH)2}+\underset{\text{Hydrogen gas}}{H2}}\]
APPEARS IN
संबंधित प्रश्न
‘E’ is an element which reacts with oxygen to form an oxide E2O. An aqueous solution of E2O turns red litmus blue, so:
i. What is the nature of oxide E2O ?
ii. Write the name of element ‘E’.
Why are metals called electropositive elements whereas non-metals are called electronegative elements?
Name the metal which has been placed at the bottom of the reactivity series.
Which of the two metals is more reactive: copper or silver?
What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place
What happens when a metal reacts with dilute hydrochloric acid? Explain with the help of an example.
One of the following is not a neutral oxide. This is:
(a) CO
(b) H2O
(c) N2O
(d) Na2O
An element E forms an oxide E2O. An aqueous solution of E2O turns red litmus paper blue.
(a) What is the nature of the oxide E2O?
(b) State whether element E is a metal or a non-metal.
(c) Give one example of an element like E.
Write the name and formula of a molecule made up of three atoms of oxygen.
Find the odd one out:
