pBlock ElementsII - Result Question 154

####42. Which of the following is incorrect statement?

(1978,1M)

(a) NO is heavier than O2

(b) The formula of heavy water is D2O

(c) N2 diffuses faster than oxygen through an orifice

(d) NH3 can be used as a refrigerant

Objective Questions II

(One or more than one correct option)

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Solution:

  1. NO is lighter than O2.

D2O is commonly known as heavy water.

N2 is lighter than O2, effuse at faster rate under identical experimental conditions. NH3 liquefies at very low temperature. Therefore, liquid NH3 is used as a refrigerant.



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