Home
Class 8
CHEMISTRY
PA S S A G E -I V : The molecular mass o...

PA S S A G E -I V : The molecular mass of a substance is the relative mass of its molecule as compared with the mass of a carbon-12 atom taken as 12 units. The molecular mass of a substance indicates the number of times one molecule of a substance is heavier than `1/12` of C-12 atom. It is equal to the sum of atomic masses of all the atoms present in a molecule. Depending on the number of atoms of same or different elements present in the molecule, it can be monoatomic, diatomic, triatomic, tetratomic or a polyatomic molecule.
Which is an example of a polyatomic molecule?

A

`S_(8)`

B

`HNO_(3)`

C

`C_(2)H_(5)OH`

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
A
`S_(8)` has more than 4 atoms.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ATOMS, MOLECULES AND ATOMIC STRUCTURE

    MTG IIT JEE FOUNDATION|Exercise EXERCISE ( Integer/Numerical Value Type)|5 Videos

  • ATOMS, MOLECULES AND ATOMIC STRUCTURE

    MTG IIT JEE FOUNDATION|Exercise EXERCISE ( Comprehension Type PASSAGE-III )|3 Videos

  • COAL AND PETROLEUM

    MTG IIT JEE FOUNDATION|Exercise OLYMPIAD/HOTS CORNER|10 Videos

Similar Questions

Explore conceptually related problems

Define 'molecular mass' of a substance.

How many molecules are present in one gram molecular mass of a substance ?

Knowledge Check

  • The molecular mass of a substance is the relative mass of its molecule as compared with the mass of a carbon-12 atom taken as 12 units. The molecular mass of a substance indicates the number of times one molecule of a substance is heavier than (1)/(12) th of C-12 atom. It is equal to the sum of atomic masses of all the atoms present in a molecule. Depending on the number of atoms of same or different elements present in the molecule, it can be monoatomic, diatomic, triatomic, tetraatomic or a poly-atomic molecule.

    A
    triatomic molecules
    B
    triatomic and tetra-atomic molecules
    C
    diatomic and triatomic molecules
    D
    tetra-atomic molecules.

  • PA S S A G E -I V : The molecular mass of a substance is the relative mass of its molecule as compared with the mass of a carbon-12 atom taken as 12 units. The molecular mass of a substance indicates the number of times one molecule of a substance is heavier than 1/12 of C-12 atom. It is equal to the sum of atomic masses of all the atoms present in a molecule. Depending on the number of atoms of same or different elements present in the molecule, it can be monoatomic, diatomic, triatomic, tetratomic or a polyatomic molecule. Total number of atoms in 44 g of CO_(2) is :

    A
    `6.02 xx 10^(23)`
    B
    `6.02 xx 10^(24)`
    C
    `1.806 xx 10^(24)`
    D
    `18.06 xx 10^(22)`

  • PA S S A G E -I V : The molecular mass of a substance is the relative mass of its molecule as compared with the mass of a carbon-12 atom taken as 12 units. The molecular mass of a substance indicates the number of times one molecule of a substance is heavier than 1/12 of C-12 atom. It is equal to the sum of atomic masses of all the atoms present in a molecule. Depending on the number of atoms of same or different elements present in the molecule, it can be monoatomic, diatomic, triatomic, tetratomic or a polyatomic molecule. Carbon dioxide, hydrogen sulphide, calcium chloride and sodium oxide are examples of

    A
    triatomic molecules
    B
    triatomic and tetratomic molecules
    C
    diatomic and triatomic molecules
    D
    tetratomic molecules.

    • Similar Questions

    Explore conceptually related problems

    Are the mass of a molecule of a substance and its molar mass same?

    What is the molecular mass of substance, each molecule of which contains 4 atoms of carbon and 10 atoms of hydrogen?

    Calculate the relative molecular mass of the substance: Cl _(2)

    Which is used as the standard for comparing the atomic and molecular masses of substances?

    The molecular mass of a substance is the relative mass of its molecule as compared with the mass of a carbon-12 atom taken as 12 units. The molecular mass of a substance indicates the number of times one molecule of a substance is heavier than (1)/(12) th of C-12 atom. It is equal to the sum of atomic masses of all the atoms present in a molecule. Depending on the number of atoms of same or different elements present in the molecule, it can be monoatomic, diatomic, triatomic, tetraatomic or a poly-atomic molecule. Carbon dioxide, hydrogen sulphide, calcium chloride and sodium oxide are examples of

    Home
    Profile