Home
Class 12
CHEMISTRY
Assertion : NaOH cannot be stored in a v...

Assertion : NaOH cannot be stored in a vessel made of aluminium or zinc.
Reason : A protective layer of oixde is formed on the surface of the metal

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

Both Assertion and Reason are true and Reason is not the correct explanation of Assertion

C

Assertion is true but Reason is false

D

Both Assertion and Reason are false

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

Tissues forming protective layer over surface of plant body

Assertion : Although aluminium is above hydrogen in electrochemical series, it is stable in air and water. Reason : The thin protective layer of oxide (AI_(2) O_(3)) on the surface protects the aluminium.

Assertion : van Arkel method is used for refining of Zinc. Reason : In this method impure is evaporated to obtain the pure metal as distillate .

Statement-I: Gold chloride (AuCI_(3)) solution cannot be stored in a vessel made of copper iron, nickel, chromium, zinc or tin. Because Statement-II: Gold is veru precious metal.

Assertion (A) HNO_(3) makes iron passive. Reason (R ) HNO_(3) forms a protective layer of ferric nitrate on the surface of iron.

Assertion: Bryophytes are called asterrestrial amphibians. Reason: Bryophytes require an external layer of water on the soil surface for their existence.

Assertion : Colours can be seen in thin layers of oil on the surface of water. Reason : White light is composed of several colours.

Assertion : Water kept in an open vessel will quickly evaporate on the surface of the moon. Reason : The temperature at the surface of the moon is much higher than boiling point of the water.

Assertion: Vitamin D cannot be stored in our body. Reason : Vitamin D is fat soluble vitamin and is excreted out of the body with urine.

Assertion (A) Copper sulphate can be stored in zinc vessel. Reason(R) Zinc is less reactive than copper. (a) Both assertion and reason are true and the reason is the correct explanation of assertion. (b) Both assertion and reason are true and reason is not the correct explanation of assertion. (c) Assertion is true but the reason is false. (d) Both assertion and reason are false.