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प्रश्न
Write the name and formula of a molecule made up of three atoms of oxygen.
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उत्तर
Write the name and formula of a molecule made up of three atoms of oxygen.
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संबंधित प्रश्न
A solution of CuSO4 in water is .................... in colour.
(a) Pink
(b) Blue
(c) Colourless
(d) Green
Write equations for the reactions of calcium and potassium with water.
The reaction of an iron nail with copper sulphate solution is ........... reaction.
(a) Combination
(b) Displacement
(c) Double displacement
(d) Decomposition
Name the metal which has been placed at the bottom of the reactivity series.
Which of the following elements would yield an acidic oxide.
Na, S, C, K, H
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
What special name is given to substances like aluminium oxide.
An acidic oxide is produced by the element:
(a) Na
(b) C
(c) Ca
(d) H
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What is the cause of chemical bonding (or chemical combination) of atoms of elements?
