- 1(current)
Q. No.Which of the following statements is NOT correct?
Choose the most appropriate answer from the options given below:
| A. | Hydrogen is used to reduce heavy metal oxides to metals. |
| B. | Heavy water is used to study the reaction mechanism. |
| C. | Hydrogen is used to make saturated fats from oils. |
| D. | The H-H bond dissociation enthalpy is lowest as compared to a single bond between two atoms of any element. |
| E. | Hydrogen reduces oxides of metals that are more active than iron. |
| 1. | A, B, C only | 2. | B, C, D, E only |
| 3. | B, D only | 4. | D, E only |
Subtopic: Â Preparation & Properties |
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Â Preparation & Properties |
 69%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
An incorrect statement among the following regarding hydrogen is:
| 1. | Hydrogen never acts as a cation in ionic salts. |
| 2. | Hydronium ion, H3O+ exists freely in a solution. |
| 3. | Dihydrogen does not act as a reducing agent. |
| 4. | Hydrogen has three isotopes of which protium is the most common. |
Subtopic: Â Preparation & Properties |
 66%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
The pair that on reaction will not evolve gas is
1. Copper and HCl (aqueous)
2. Iron and steam
3. Iron and (aqueous)
4. Sodium and ethyl alcohol
Subtopic: Â Preparation & Properties |
 54%
From NCERT
AIPMT - 1998
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
- 1(current)
Q. No.
© 2024 GoodEd Technologies Pvt. Ltd.