Question # 1

Which statement about a molecule is incorrect.

Choose an answer

It exist independently

Molecules of a substances are similar

Hemoglobin is a homoatomic molecules

Oxygen molecule is a macromolecule

A limiting reactant is one.

Choose an answer

Which is present in least amount

Which produces minimum number of moles of product

Which produces maximum number of moles product

Does not effect the amount of product.

Isotopes are the atoms of same element with similar chemical properties but different

Choose an answer

Atomic number

Atomic volume

Atomic weight

Atomic structure

the number of Al³⁺ ion sin AlCl₃is 2.007 x 10²³. The number of Cl- ions are.

Choose an answer

6.02 x 10²³

3.01 x 10²³

1.5 x 10²³

One mole of CH₃OH and one mole of C₂H₅OH have

Choose an answer

Equal number of atoms

Equal number of molecules

Equal number of electrons

Equal number of protons

Paalladium has isotopes.

Choose an answer

6

₇

8

9

In stoichiometric calculations

Choose an answer

The reaction can be reversile

Side products can be formed

Law of conservation of mass may not be obeyed

Law of definite proportions is definitely obeyed

The mass fo 1.505 x 10²³atoms of sulphur is.

Choose an answer

0.5 g

0.6 g

0.7 g

0.8 g

CO+ is an example of.

Choose an answer

Free radical

Cationic molecular ion

Anionic molecular ion

Stable molecule

More Classes

Other Links

Chemistry Fsc Part 1 Chapter 1 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer