The correct order of increasing electrical conductance is -
1. BeH2 > CaH2 > TiH2
2. BeH2 < CaH2 > TiH2
3. TiH2 < BeH2 < CaH2
4. BeH2 < CaH2 < TiH2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct order of increasing reducing nature is -
1. NaH > H2O < MgH2
2. > > NaH
3. < < NaH
4. < NaH
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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 & BiologyThe hydrides of carbon (CnH2n + 2) can act as -
1. Lewis acid.
2. Lewis base.
3. Both 1 and 2
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology“Non-stoichiometric hydrides” are :
1. | Hydrogen-deficient compounds formed by the reaction of a hydrogen atom with d-block and f-block elements. |
2. | Hydrogen-deficient compounds formed by the reaction of dihydrogen with d-block and f-block elements. |
3. | Electron-deficient compounds formed by the reaction of dihydrogen with d-block and f-block elements. |
4. | Hydrogen-deficient compounds formed by the reaction of dihydrogen with s-block and p-block elements. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMetallic hydrides are useful for hydrogen storage because :
1. Metallic hydrides are oxygen-rich.
2. Metallic hydrides are oxygen-deficient.
3. Metallic hydrides are hydrogen-rich.
4. Metallic hydrides are hydrogen-deficient.
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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 & BiologyThe correct order of hydrogen bonding among , H2O and HF, is
1. HF > >
2. > HF >
3. HF > >
4. > HF >
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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 & BiologySaline hydrides can remove traces of water from organic compounds because :
1. | They react with water to form a metal hydroxide along with the liberation of oxygen gas. |
2. | They react with water to form a metal hydroxide along with the liberation of hydrogen gas. |
3. | They react with water to form a metal carbonate along with the liberation of oxygen gas. |
4. | They react with water to form a metal carbonate along with the liberation of hydrogen gas. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology