Correlate the items listed in Column I with those listed in Column II.
Column I | Column II |
A. Synthesis gas | 1. Na2[Na4(PO3)6 ] |
B. Heavy water | 2. Mixture of CO and H2 |
C. Calgon | 3. Prolonged electrolysis of water |
D. Salt like hydrides | 4. Stoichiometric compounds of s-block elements |
Codes
A | B | C | D | |
1. | 4 | 3 | 2 | 1 |
2. | 2 | 3 | 1 | 4 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 1 | 3 | 2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCO2 is used as a fire extinguisher because -
1. has high lattice energy.
2. will be effective in isolating the burning surface from dihydrogen and dioxygen.
3. is lighter than dioxygen.
4. is lighter than dihydrogen.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement about electron-deficient hydride is that it:
1. | Does not have sufficient electrons to form a regular bond. |
2. | Cannot be represented by conventional Lewis structures. |
3. | Accept electrons. |
4. | All of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIonic hydrides are formed by:
1. Transition metals.
2. Elements of very high electropositivity.
3. Elements of very low electropositivity.
4. Metalloids.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe group that has hydride formed by only one member is -
1. 6
2. 7
3. 8
4. 9
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA neutral hydride among the following is -
1. H2S
2. H2O
3. H2Se
4. H2Te
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCovalent hydride among the following is -
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHydrogen combines directly with:
1. Ca
2. Cu
3. Zn
4. Fe
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAtomic hydrogen or oxy-hydrogen torch is used for cutting and welding purposes because:
1. | Atomic hydrogen converts into molecular hydrogen and generates a large amount of energy. |
2. | Atomic hydrogen converts into molecular hydrogen and generates a low amount of energy. |
3. | Molecular hydrogen converts into atomic hydrogen and generates a large amount of energy. |
4. | Molecular hydrogen converts into atomic hydrogen and generates a low amount of energy. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIonic hydrides react with water to give:
1. Acidic solutions.
2. Basic solutions.
3. Hydride ion.
4. Protons.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology