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प्रश्न
Choose the correct alternative from the choices given below for the following statement:
Trinitrotoluene is used as
पर्याय
a preservative
a fertiliser
a fuel
an explosive
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उत्तर
an explosive
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संबंधित प्रश्न
Write True or False against the following statement.
Gunpowder is an insecticide:
State the functions of the following basic glass apparatus:
Beaker
State the method used for collecting the following gas:
Sulphur dioxide – a gas highly soluble in water and heavier than air
Select the correct name from the choices given below for the following case.
A chemical used as a preservative for jams, pickles, etc.
Match the apparatus A to J shown below with their correct names 1 to 10 given below:
1. Delivery Tube
2. Pipette
3. Wire gauze
4. Bee-hive shelf
5. Thistle funnel
6. Flat bottom flask
7. Test tube stand
8. Burette
9. Retort
10. Conical flask
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 rectangular mesh with asbestos at its centre kept for initiating even distribution of heat to the bottom of the apparatus.
Give reasons for the following
Alchemy was considered a pseudoscience.
A philosopher’s stone is not exactly a stone.
