The products obtained on the completion of the following reactions respectively are -
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe consequences of high enthalpy of H–H bond in dihydrogen is /are -
1. Hydrogen has a low tendency to form ions.
2. It forms diatomic molecules (), and a large number of covalent hydrides.
3. Hydrogen does not possess metallic characteristics.
4. All of the above.
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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 & BiologyThe term ’auto-protolysis’ of water means -
1. Physical reaction in which two water molecules react to produce a hydroxide ion (OH–) and a hydronium ion ().
2. Chemical reaction in which five water molecules react to produce a hydroxide ion (OH–) and a hydronium ion ().
3. Chemical reaction in which two water molecules react to produce a hydroxide ion (OH–) and a hydronium ion ().
4. Chemical reaction in which two water molecules react to produce three hydroxide ions (OH–)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology