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प्रश्न
Write True or False against the following statement.
Chemistry plays an important role in the national economy:
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Write True or False against the following statement.
Enzymes secreted by our body are chemicals:
State the method used for collecting the following gas-
Ammonia – a gas highly soluble in water and lighter than air
In the medieval ages – the philosopher’s stone was connected with all transformations. Explain.
Select the correct name from the choices given below for the following case.
The branch of Science which deals with the different forms of energy e.g. light and sound.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
For holding washed test tubes
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A metallic apparatus which supports the wire gauze.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A long glass apparatus closed at one end used for collecting gases.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A glass apparatus that measures liquid by sucking the liquid at one end up to the marked level and later pouring it out.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A long glass tube with a broad inlet at the top, which allows entry of the reactants into the round bottom flask, during laboratory preparations of gases.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A modern apparatus with an air regulator, used for heating purposes.
