Semifinals

Question 1

Consist of hydrogen and oxygen

Answer 1

Hydrocarbons

Question 2

Two types of hydrocarbons

Answer 2

1. Aliphatic HC
2. Aromatic HC

Question 3

Hydrocarbons are joined together in s straight chain, branched chain, non-aromatic ring

Answer 3

Aliphatic Hydrocarbons

Question 4

Carbon atoms linked together in a ring structure together in a ring structure manner with conjugated pi bonds

Answer 4

Aromatic Hydrocarbons

Question 5

Two types of aliphatic Hydrocarbons

Answer 5

1. Saturated
2. Unsaturated

Question 6

All single bonds
E.g - alkane and cycloalkane

Answer 6

Saturated

Question 7

Multiple bonds
E.g-alkene, alkyne, cycloalkene/yne

Answer 7

Unsaturated

Question 8

Unequal sharing of electrons

Answer 8

Polar reaction

Question 9

Portion of an organic molecule where most of chemical reaction occurs

Answer 9

Functional Group

Question 10

Write Polar Reaction

Answer 10

A-+B+—-> A-B

Question 11

Visible result of alkene/ alkyne

Answer 11

1. Homogeneous of mixture
2. Evolution of heat
3. Appearance of a color

Question 12

Alkane characteristics

Answer 12

1. Single bond between carbon to carbon
2. Less reactive

Question 13

Common type of reaction in Alkane

Answer 13

Combustion

Question 14

Two types of combustion reaction

Answer 14

1. Complete combustion reaction
2. Incomplete combustion reaction

Question 15

What is the positive organic hydrocarbons in Bayer’s Test Solution and it’s color?

Answer 15

Cyclohexene
-brown ppt (positive result)

Question 16

Bayer’s Reagent is also known as

Answer 16

1% Alkaline KMnO4

Question 17

Bayer’s Reagent ingredients haha

Answer 17

• 1g potassium permanganate
• 10g of anhydrous Na2CO3
• 100ml distilled water