Chemistry
Grade-8
Easy
Question
During the preparation of Hydrogen by the laboratory method. Arrange these steps in proper order.
1. Fix a two-holed airtight stopper in the mouth of the flask.
2. Take a few pieces of granulated zinc pieces in rare taken in a flat-bottomed flask
3. Pass a thistle funnel through one hole and pass one end of the delivery tube through the other hole.
4. Now pour some dilute hydrochloric acid through the thistle funnel.
Place another end of the delivery tube inside the beehive shelf kept in a water trough.
- (A) (B) (D) (C) (E)
- (B) (A) (C) (E) (D)
- (B) (A) (E) (C) (D)
- (A) (B) (C) (E) (D)
Hint:
For laboratory preparation, use dilute hydrochloric acid or dilute sulfuric acid for zinc granules
The correct answer is: (B) (A) (E) (C) (D)
The correct option is c)(B) (A) (E) (C) (D).
1. Take a few pieces of granulated zinc pieces in rare taken in a flat-bottomed flask
2. Fix a two-holed airtight stopper in the mouth of the flask.
3.Place another end of the delivery tube inside the beehive shelf kept in a water trough.
4. Pass a thistle funnel through one hole and pass one end of the delivery tube through the other hole.
5. Now pour some dilute hydrochloric acid through the thistle funnel.
Hydrogen is used to process crude oil into refined fuels such as gasoline and diesel, and to remove impurities such as sulfur from these fuels. Hydrogen is a useful fuel because it burns very cleanly, unlike fossil fuels. Does not emit harmful gases or carbon dioxide.
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State whether the following are true or false.
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(iii). The Bosch process can also prepare Hydrogen from natural gas, which contains ethane as the main ingredient.
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