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NEETChemistrySome Basic Concepts of Chemistry

A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g of carbon dioxide, 0.690 g of water and no other products. A volume of 10.0 L (measured at STP) of this welding gas is found to weigh 11.6 g. What is the (i) empirical formula, (ii) molar mass of the gas, and (iii) molecular formula?

Options

  1. A(i) CH , (ii) 20 g/mol and (iii) C 2 H 2
  2. B(i) C 2 H , (ii) 26 g/mol and (iii) C 4 H 2
  3. C(i) C 2 H , (ii) 30 g/mol and (iii) C 2 H 2
  4. D(i) CH , (ii) 26 g/mol and (iii) C 2 H 2

Correct answer

D. (i) CH , (ii) 26 g/mol and (iii) C 2 H 2

Step-by-step solution

Correct Option is : (D) (i) CH , (ii) 26 g/mol and (iii) C 2 H 2

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