Question

to burn nephthalein ball, Camphor, vegetable oil and Alcohal one by one with all precaution. Students observed that only ___ burns with blue flame being a saturated hydrocarbon.


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Answer 1

Students observed that only alcohol burns with blue flame being a saturated hydrocarbon.

Explanation:

• A hydrocarbon is said to be saturated if it has only single C-C bonds.
• A hydrocarbon is said to be unsaturated if it has one C-C double or triple bond.
• Camphor, naphthalene and vegetable oil are aromatic organic substances with unsaturated hydrocarbon ring structure joined with alternating C-C single and double bonds.
• Alcohol is a saturated hydrocarbon. Example: Ethanol contains no double or triple bonds.

Answer 2

Answer:

Students observed that only alcohol burns with blue flame being a saturated hydrocarbon.

Explanation:

• A hydrocarbon is said to be saturated if it has only single C-C bonds.

• A hydrocarbon is said to be unsaturated if it has one C-C double or triple bond.

• Camphor, naphthalene and vegetable oil are aromatic organic substances with unsaturated hydrocarbon ring structure joined with alternating C-C single and double bonds.

• Alcohol is a saturated hydrocarbon. Example: Ethanol contains no double or triple bonds.