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प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron pipes coated with zinc do not get rusted easily.
पर्याय
True
False
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उत्तर
This statement is True.
Explanation:
The zinc coating on iron pipes prevents rust by acting as a protective barrier.
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संबंधित प्रश्न
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Miscible liquids having slightly different boiling points can be separated by the
- evaporation
- distillation
- fractional distillation
- sedimentation
Out of sodium and sulphur which is a metal? Explain its reaction with the oxygen.
What is a chemical change? Give two examples of chemical change?
What do you observe? When
Barium chloride is added to sodium sulphate solution
What do you observe when CO2 is passed through lime water first and then a little in excess.
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
A coloured substance which leaves a black residue and evolves two gases one of which is acidic and coloured and the other neutral and colourless.
The chemical change is ______.
Which of the following is not an “element + element → compound” type reaction?
When magnesium is burnt in the air, a new substance is formed which is ______.
Magnesium + oxygen → magnesium oxide.
2Mg + O2 → 2Mg O
