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NEETChemistrySome Basic Concepts of Chemistry

Match the column. ( array |l|l|l|l| & Column I & & Column II (A) & array l 8g-atoms of Hydrogen array & (P) & array l 2 moles C ₃ H ₄ array (B) & array l 6 ~g -atoms of Carbon array & (Q) & array l 3 moles CH ₃ COOH array (C) & array l 6 ~g -atoms of oxygen array & (R) & array l 4 moles N ₂ H ₂ array (D) & array l 4 ~g -molecules of Nitrogen array & (S) & array l 2 moles N ₂ O ₃ array array )

Options

  1. A(( A ) ( P , Q )( B ) ( R , S )( C ) ( P , S )( D ) ( P ) )
  2. B(A) ( ( P , R ) ) (B) ( ) (P,Q) (C) ( ) (Q,S) (D) ( ) (R)
  3. C(( A ) ( P , R )( B ) ( P , R )( C ) ( R , S )( D ) ( S ) )
  4. D(A) ( ( R , S )( B ) ( P , S )( C ) ( Q , R )( D ) ( Q ) )

Correct answer

C. (( A ) ( P , R )( B ) ( P , R )( C ) ( R , S )( D ) ( S ) )

Step-by-step solution

Column I (A) ( 8 ) g-atoms of Hydrogen: - Molar mass of ( H =1, ~g / mol ) - Moles = ( 8, ~g 1, ~g / mol =8 ), moles of H atoms - For ( C ₃ H ₄ ) : Each molecule has 4 H atoms, so 2 moles of ( C ₃ H ₄ ) contain 8, II. - Matches with (P). (B) 6 g -atoms of Carbon: - Molar mass of ( C =12, ~g / mol ) - Moles (= 6, ~g 12, ~g / mol =0.5 ), moles of C - For ( CH ₃ COOH ) : Each molecule has 2 C, so 3 moles have 6 C . - Matches with (Q). (C) 6 g-atoms of Oxygen: - Molar mass of ( O =16, ~g / mol ) (C) 6 g-atoms of Oxygen

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