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Assertion : In atomic form hydrogen cons...

Assertion : In atomic form hydrogen consists of one proton and one electron.
Reason : In elemental form hydrogen exists as a diatomic molecule and is called dihydrogen.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
Atomic number of hydrogen is 1. Hence it has 1 proton. Also for a neutral atom, number of protons is equal to the number of electrons hence it has 1 electron. It does not have any neutron.
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Knowledge Check

  • One of the following elements dose not exist as tetra atomic molecule

    A
    N
    B
    P
    C
    As
    D
    Sb

  • One atom of an element consists of 19 protons and 20 neutrons. Mass number of the element will be

    A
    19
    B
    20
    C
    9
    D
    None of these

  • Assertion : The nearly tetrahedral arrangement of the orbitals about the oxygen atom allows each water molecules to form hydrogen bonds with as many as four neighbouring water molecules. Reason: In ice each molecule forms four hydrogen bonds as each molecule is fixed in the space.

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion
    B
    if both assertion and reason are true but reason is not the correct explanation of the assertion
    C
    if assertion is true but reason is false
    D
    if the assertion and reason both are false

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    Assertion : In the formation of water octet molecule, both hydrogen and oxygen atoms attain octet of electrons. Reason : Oxygen atom forms two ionic or electrovalent bonds with two hydrogen atoms.

    Which substance will form hydrogen bonds to water molecules but will not will not form hydrogen bonds with its own molecules?

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