Question

Read the given passage and fill in the blanks by choosing an appropriate option .Non metals finds wide applications in industries . For example ___i_____ is used as lubricant , ___ii_______ is used in welding metals ,___iii______ is used to improve the physical properties of rubber , while ____iv___ is used as cooling agent in refrigeration industry . (1 marks) *

i - Carbon ,ii - Hydrogen , iii - Chlorine , iv - Phosphorus

i - Hydrogen , ii - Oxygen , iii - Chlorine ,iv- Nitrogen

i - Graphite, ii - Hydrogen , iii ) - Sulphur , iv - Nitrogen

i - Phosphorus , ii - Sulphur , iii - Oxygen , iv - Carbon
please answer this fast
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Answer 1

Answer:

Graphite- used as lubricant

Hydrogen- welding metals

Sulphur-imrove physical properties of rubber

liquid Nitrogen-used as cooling agent in refrigeration