Multiple choice

Which of the following statements is/are false?

  1. Lindlar’s catalyst is palladium supported over calcium carbonate, but partially poisoned by addition of lead acetate.

  2. –COOCH3 is a meta-directing group while OCOCH3 is an ortho-, para- directing group.

  3. Both 1 and 2

  4. When acetylene reacts with methyl magnesium bromide, hydrogen is evolved.

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is correct because when acetylene reacts with methyl magnesium bromide, CH4 is produced. HC≡CH + CH3MgBr → HC≡CMgBr + CH4

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