Science Assertion (A) & Reason (B) MCQ

Assertion (A) : Mustard oil is soluble in water.
Reason : Kerosene can mix with petrol to form a single layer.

Assertion (A) : Materials that allow light to pass through partially are called translucent.
Reason: Air and certain types of plastics are translucent.

Assertion (A) : Anything that occupies space and has mass is called matter.
Reason : The space occupied by matter is its volume.

Assertion (A) : Water plays an important role in the functioning of our body.
Reason : Water can dissolve a large number of materials.

Assertion (A) : We classify the objects into groups.
Reason: The classification of objects into groups helps in understanding them.

Assertion (A): Materials can be grouped on the basis of whether they are transparent, translucent or opaque.
Reason (R): A plastic bottle is transparent while ceramic is opaque material.

Assertion (A): Metal is a hard, shiny, solid material.
Reason (R): Copper and aluminium are metals.

Assertion (A): Materials that are shiny are called lustrous materials.
Reason (R): Metals are usually dull.

Assertion (A): Substances which do not mix with water are called insoluble.
Reason (R): They do not disappear in water even after stirring for a long time.

Assertion (A): The matter from which something is or can be made is called material.
Reason (R): Materials are grouped together on the basis of similarities and dissimilarities in their properties.