SS 2 chemistry assessment 1

A substance that turns red litmus paper blue is -------?

• A Salt

• A base

• An acid

• A gas

A salt was left on the laboratory table overnight, the next morning it has turned into a liquid, the salt is said to be -----?

• Efflorescent

• Hygroscopic

• Deliquescent

• Silica

Lime fruit is _____?

• Acidic

• Basic

• Neutral

• Salty

Sodium hydrogen trioxocarbonate iv is an example of____?

When all the replaceable hydrogen atom of an acid is fully replaced by a metallic ion, the salt formed is a/an ______ salt?

• Basic salt

• Normal salt

• Efflorescent salt

• Acid salt

What is the shape of the earth Are

• Geoid

• Spherical

• Flat

• Triangle

• Amoeba

The particles located in the nucleus of an atom are known as

• electron

• positron

• quark

• nucleon

What is the shrinken of cell due to the release of water

• Turgidity

• Plasmolysis

• Flaccidity

• Hypotonic

During the fermentation process, what gas is the by-product?

• Carbon (iv) oxide

• Carbon (vi) oxide

• Carbon (Ii) oxide

• Nitrogen (Ii) oxide

One it this is not a physical property of carbon dioxide?

• It is lighter than air

• It is colourless

• It is denser than air

• It doesn't support combustion