Quiz For 8th semester

Ore is a

• mixture

• element

• compound

• none

Coke is used only for the reduction of

• CuO

• ZnO

• Fe2O3

• None

Al is .......... in nature

• Acidic

• Basic

• amphoteric

• None

Melting point of sulphur is

• 100 *C

• 110 *C

• 112 *C

• none

the wavelength of UV light is ..... than IR light

• smaller

• greater

• equal

• none

Micronutrients are required for plant in concentration of less than

• 5 Kg /Hectares

• 10 kg/Hectares

• 15 kg/Hectares

• none

Calcium deficient soil is generally treated with

• Na2O

• CaO

• MgO

• none

Which of the following is not produced in fuel cell

• water

• heat

• electricity

• pollutants

The electrolyte used in fuel cell is

• KCl

• KOH

• NaCl

• NaOH

The energy of IR radiations is ....... than Visible radiations

• greater

• smaller

• equal

• None