Consider the following statements :
1. Atomic hydrogen is obtained by passing hydrogen through an electric arc.
2. Hydrogen gas will not reduce heated aluminium oxide.
3. Finely divided palladium adsorbs large volume of hydrogen gas
4. Pure nascent hydrogen is best obtained by reacting Na with C₂H₅OH
Which of the above statements is/are correct ?
(a) 1 alone
(b) 2 alone
(c) 1, 2 and 3
(d) 2, 3 and 4
Answers
(d) 2,3 and 4 is the correct ans
Answer:c) 1, 2 and 3 are correct statements
Explanation:
We will see each sentence and check if it is correct or not.
1. Atomic hydrogen is obtained by passing hydrogen through an electric arc.
This statement is correct.
There's a welding machine tool available for production of atomic hydrogen.
2. Hydrogen gas will not reduce heated aluminium oxide.
This statement is also correct.
Aluminum is at a higher position in the reactivity series.
Thus hydrogen gas can not reduce aluminum oxide.
3. Finely divided palladium adsorbs large volume of hydrogen gas.
This statement is also correct.
4. Pure nascent hydrogen is best obtained by reacting Na with C₂H₅OH
This statement is incorrect.
It is obtained by reacting absolute alchohol.
Answer:c) 1, 2 and 3 are correct statements
Explanation:
We will see each sentence and check if it is correct or not.
1. Atomic hydrogen is obtained by passing hydrogen through an electric arc.
This statement is correct.
There's a welding machine tool available for production of atomic hydrogen.
2. Hydrogen gas will not reduce heated aluminium oxide.
This statement is also correct.
Aluminum is at a higher position in the reactivity series.
Thus hydrogen gas can not reduce aluminum oxide.
3. Finely divided palladium adsorbs large volume of hydrogen gas.
This statement is also correct.
4. Pure nascent hydrogen is best obtained by reacting Na with C₂H₅OH
This statement is incorrect.
It is obtained by reacting absolute alchohol.