- Home
- General Knowledge
Chemistry
6.
Chlorophyll is a naturally occurring chelate compound in which the central metal is
- A.Magnesium
- C.Calcium
- B.Copper
- D.Iron
- Answer
- Report
Answer : [A]
7.
To avoid 'knocking' of the engine of a car, certain compounds are added to petrol, which are known as anti-knocking agents. Which one of the following is an anti-knocking agent?
- A.Ethyl alcohol
- C.Tetra ethyl lead
- B.White petrol
- D.Butane
- Answer
- Report
Answer : [C]
8.
Which one of the following colloidal systems is represented by fog?
- A.Liquid in gas
- C.Solid Gas
- B.Gas in liquid
- D.Liquid in liquid
- Answer
- Report
Answer : [A]
9.
Galvanised iron sheets are protected from rusting due to the presence of a layer of
- A.Lead
- C.Zinc
- B.Chromium
- D.tin
- Answer
- Report
Answer : [C]
10.
Water is a good solvent of iconic salts because
- A.it has a high boiling point
- C.it has a high specific heat
- B.it has a high dipole moment
- D.it has no colour
- Answer
- Report
Answer : [B]
|
|
||||||||||||||||||||||||||||
