plssss answer as fast as possible
Answers
Answer:
1. NaCl + conc. H₂SO₄ -------> HCl + NaHSO₄
2. Concentrated sulphuric acid is used twice in the reaction -
a. TO PREPARE HCl GAS - Due to its non volatile nature, concentrated sulfuric acid is used so that even at high temperatures, it does not volatilize out with HCl which is a volatile acid and also, non volatile acid displace salts to form volatile acid.
b. TO DRY HCl GAS - HCl gas is acidic in nature and concentrated sulphuric acid itself is acidic and hence, the dehydrating agent would remove all moisture and combined H₂ and O₂ in the ratio 2:1 without reacting with the gas. If the dehydrating agent had be CaO or P₂O₅, the gas would have reacted with them forming respective chlorides.
3. The temperature maintained in this reaction is less than 200°C.
If the temperature had been more than 200°C,insoluble layer of Na₂SO₄ will be formed which will -
a. stick to the glass surface and will not be easy to remove
b. fuel wastage
c. the glass apparatus may crack.
4. The gas is dissolved in water by using a funnel arrangement to form HCl by preventing back suction.
5. HNO₃ acid is not used since -
1. It is volatile in nature and may tend to volatilize out with HCl gas
2. At such high temperatures, the acid will decompose to form NO₂ which will not give desired products.
PLEASE MARK AS BRAINLIEST