Match List - I with List - II.
List-I (Hydrides) |
List - II (Nature) |
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(a) | MgH2 | (i) | Electron precise |
(b) | GeH4 | (ii) | Electron deficient |
(c) | B2H6 | (iii) | Electron rich |
(d) | HF | (iv) | Ionic |
(a) | (b) | (c) | (d) | |
1. | (ii) | (iii) | (iv) | (i) |
2. | (iv) | (i) | (ii) | (iii) |
3. | (iii) | (i) | (ii) | (iv) |
4. | (i) | (ii) | (iv) | (iii) |
Match list-I with list-II:
List-I (Commercial name) |
List-II (Chemical name) |
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(a) | Calgon | (i) | Sodium aluminium silicate (hydrated) |
(b) | Permutit | (ii) | Sodium carbonate |
(c) | Soap | (iii) | Sodium hexameta-phosphate |
(d) | Washing soda | (iv) | Sodium stearate |
Choose the correct answer from the options given below:
(a) | (b) | (c) | (d) | |
1. | (i) | (iv) | (ii) | (iii) |
2. | (iii) | (i) | (iv) | (ii) |
3. | (ii) | (iii) | (iv) | (i) |
4. | (iv) | (iii) | (i) | (ii) |
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 |
Tritium, a radioactive isotope of hydrogen, emits which of the following particles?
1. Gamma
2. Neutron (n)
3. Beta
4. Alpha
Some statements about water are given below:
(a) | Heavy water is used as a moderator in nuclear reactors. |
(b) | Heavy water is more associated than ordinary water. |
(c) | Heavy water is a more effective solvent than ordinary water. |
Which of the above statements are correct?
1. (a), (b), and (c)
2. (b) and (c)
3. (a) and (c)
4. (a) and (b)
Match the following and identify the correct option
(a) CO(g)+H2(g) | (i) Mg(HCO3)2+Ca(HCO3)2 |
(b) Temporary hardness of water | (ii) An electron deficient hydride |
(c) B2H6 | (iii) Synthesis gas |
(d) H2O2 | (iv) Non-planar structure |
(a) | (b) | (c) | (d) | |
1. | (iii) | (ii) | (i) | (iv) |
2. | (iii) | (iv) | (ii) | (i) |
3. | (i) | (iii) | (ii) | (iv) |
4. | (iii) | (i) | (ii) | (iv) |
The method used to remove the temporary hardness of water is-
1. Synthetic resins method
2. Calgon's method
3. Clark's method
4. Ion-exchange method
The reaction of aqueous KMnO4 with H2O2 in acidic condition gives:
1.
2.
3.
4.