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प्रश्न
Select the correct answer for the following options:
The pale blue precipitated obtained when copper [II] sulphate reacts with sodium hydroxide.
विकल्प
Hydrogen
Copper [II] oxide
Oxygen
Copper [II] hydroxide
Ammonia
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उत्तर
Copper [II] hydroxide
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संबंधित प्रश्न
How do the following help in bringing about a chemical change?
light.
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Miscible liquids having slightly different boiling points can be separated by the
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Give an example of the following chemical changes.
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Name: A brown gas
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NH3 and SO2
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Zinc carbonate.
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A white solid which evolves two colourless gases which on cooling combine and condense on the cooler parts of the test tube.
Give balanced equation for the following conversion affected by heat alone on the substance:
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Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc nitrate to nitrogen dioxide
Complete the table given below.
| Heat on copper carbonate | Test for gas evolved |
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Rusting of iron is ______.
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______ are substances that speed up the process of a chemical change and it will not undergo any change during the course of the reaction.
What is thermochemical reactions?
