Write the chemical formula of the compound carbon tetrachloride

Important Questions on Elements, Compounds and Chemical Equations

EASY

7th CBSE

IMPORTANT

WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>EVALUATE>Q 5

The polyatomic molecule of an element with atomic number $15$ is ${\mathrm{P}}_{\mathrm{n}}$. here, the value of $\mathrm{n}$ is 

MEDIUM

7th CBSE

IMPORTANT

WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>EVALUATE>Q 6

What is a chemical equation? Give an example.

MEDIUM

7th CBSE

IMPORTANT

WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>EVALUATE>Q 1

Differentiate between compounds and mixtures by giving suitable examples.

MEDIUM

7th CBSE

IMPORTANT

WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>EVALUATE>Q 2

Balance the following chemical equation.
$\mathrm{A}\mathrm{g}\mathrm{l}+\mathrm{N}{\mathrm{a}}_2\mathrm{S}\to \mathrm{A}{\mathrm{g}}_2\mathrm{S}+\mathrm{N}\mathrm{a}\mathrm{l}$

MEDIUM

7th CBSE

IMPORTANT

WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>EVALUATE>Q 2

Balance the following chemical equation
${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6+{\mathrm{O}}_2\to \mathrm{C}{\mathrm{O}}_2+{\mathrm{H}}_2\mathrm{O}+\mathrm{e}\mathrm{n}\mathrm{e}\mathrm{r}\mathrm{g}\mathrm{y}$

MEDIUM

7th CBSE

IMPORTANT

WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>EVALUATE>Q 2

Balance the following chemical equations
${\mathrm{C}\mathrm{H}}_4+{\mathrm{O}}_2\to \mathrm{C}{\mathrm{O}}_2+{\mathrm{H}}_2\mathrm{O}$

EASY

7th CBSE

IMPORTANT

WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>EVALUATE>Q 3

Write the chemical formulae of the following compound:
Aluminium chloride

MEDIUM

7th CBSE

IMPORTANT

WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 6 - Elements, Compounds and Chemical Equations>EVALUATE>Q 3

Write the chemical formulae of the following compound:
Magnesium hydroxide.