Chemistry Test 1

Diffraction

Scattering

Reflection

Interference

Alkane  ---- $$ C_{n}H_{2n+2} $$ and Alkyne  ---- $$ C_{n}H_{2n-2} $$

Alkane  ---- $$ C_{n}H_{2n+2} $$

Alkene  ---- $$ C_{n}H_{2n+3} $$

Alkyne  ---- $$ C_{n}H_{2n-2} $$

Nonmetallic oxides are acidic in nature

Phenolphthalein turns pink in soap solution.

The basic nature of Sodium Hydroxide (NaOH) is due to the presence of sodium ions.

Lemon contains citric acid

Strong acids react very rapidly with other substances (such as metal carbonates and metal hydrogen carbonates).

Hydrochloric Acid, Sulphuric acid and Nitric Acid are strong acids.

Acids are those chemical substancesthat havea salty taste.

All minerals acids are strong acids.

Both statements are false

Only statement A is true

Only statement B is true

Both statements are true