Tag: carbon compounds

Questions Related to carbon compounds

Which of the following is the true statement for carbon atoms :

chemistry carbon compounds organic compounds allotropes of carbon versatile nature of carbon

  1. A carbon atom loses $4$ electrons.

  2. A carbon atom forms $4$ covalent bonds.

  3. A carbon atom share the $2$ electrons in the first principal energy level.

  4. A carbon atom gains $4$ electrons.

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Correct Option: B
Explanation:

Carbon atoms form 4 covalent bonds. Carbon (atomic number 6) has electronic configuration $\displaystyle 1s^2 2s^22p^4$ It has $4$ valence electrons which are shared with other atoms to form $4$ covalent bonds.

Which of the following reagent reacts with ethanoic acid to liberate hydrogen gas?

chemistry carbon compounds some important carbon compounds ethanol and ethanoic acid introduction to alcohols - ethanol

  1. Na

  2. Zn

  3. Both A and B

  4. Cl

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Correct Option: C
Explanation:

Na or Zn reacts with ethanoic acid to liberate hydrogen gas.


$2CH _3COOH +2Na \rightarrow 2CH _3COONa + H _2$

Hence the correct option is C.

What is the action of the following reagents on ethanoic acid?

chemistry carbon compounds some important carbon compounds ethanol and ethanoic acid introduction to alcohols - ethanol

  1. $LiAl{H} _{4}/{H} _{3}{O}^{+}$

  2. $P{Cl} _{3}$, heat

  3. ${P} _{2}{O} _{5}$, heat

  4. None of the above

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Correct Option: A