Advertisements
Advertisements
प्रश्न
What is the contribution of chemistry in the following field?
National Defence
Advertisements
उत्तर
Contribution of chemistry in the field of national Defence:
Substances like gunpowder, T.N.T. (trinitrotoluene), phosgene, chemical weapons, laughing gas, etc., are all products of chemistry which contribute to the national defence.
APPEARS IN
संबंधित प्रश्न
What is alchemy?
What kind of experiments did Alchemists do?
What is the main difference between alchemy and chemistry?
Match the following words in column A with those in column B:
| Column A | Column B | ||
| (a) | Clothing | (i) | toothpaste, cosmetics |
| (b) | Green Revolution | (ii) | nylon, wool |
| (c) | Building Material | (iii) | agriculture |
| (d) | Commodities of daily | (iv) | mortar, cement |
Choose the correct alternative from the choices given below for the following statement:
Which one of the following is a pesticide?
Give the basic difference between Inorganic Chemistry and Organic Chemistry.
State the function of The tap at the base of a burette.
State the method used for collecting the following gas-
Ammonia – a gas highly soluble in water and lighter than air
Select the correct name from the choices given below for the following case.
A substance which dissolves grease & oil and is preferred as a – drain cleaner.
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.
