IX Chemistry QUIZ II

Solid to direct gas process is called __________

• Sublimation

• Fusion

• Melting

• They cannot go direct to gas

Molality is _________

• n * Na

• n/V

• n/Mass

• Na/N

There are _______ types of salts

• 1

• 2

• 3

• 4

pH + pOH =____

• 12

• 7

• 0

• none

In H tube experiment, the chemical formulas used were

• HCL and H₂O

• NANO₃ and NaSO₄

• AgNO₃ and HCL

• AgNO₃ and H₂0

Molar mass of H₂SO₄ is:

• 66 amu

• 66g

• 98 g

• 98 amu

Which of the following is not a compound?

• HCL

• H₂0

• Ar

• NaCL

Identify which is acid

• NaOH

• BF₃

• KOH

• None

What is formula of Ice (Remember Formula of water is H20)

• H₂0₂

• OH

• Remain same

• Ice does not have any formula

Half the distance of two atomic nucleus is:

• Atomic radi

• Atomic dia

• Nucleus radii

• Nucleus dia