1 |
Blonde hair contains compound of. |
Iron
Copper
titanium
Molybdenum
|
2 |
Brown hair contains. |
Iron compound
Copper compound
titanium compound
Both a and b
|
3 |
Which one of the ore of copper? |
Copper glance
Chalcopyrite
Both a and b
None of these
|
4 |
At the time of partition, How many industries wee present in Pakistan. |
30
32
34
40
|
5 |
Extraction of metals from its ores is called. |
Metallurgy
Mining
Griding
All
|
6 |
Formula of Methyl alcohol |
CH<sub>5</sub>-OH
CH<sub>3</sub>-CH<sub>2</sub>-OH
All of them
None of these
|
7 |
Formula of Potassium ferrocyanide. |
K<sub>4</sub>[Fe(CN)<sub>6</sub>]<sup>-4</sup>
K<sub>3</sub>[Fe(CN)<sub>4</sub>]<sup>-3</sup>
K<sub>2</sub>[Fe(CN)<sub>6</sub>]<sup>-4</sup>
K<sub>4</sub>[Fe(CN)<sub>5</sub>]<sup>-4</sup>
|
8 |
There are ____________ types of salts. |
2
3
6
8
|
9 |
Chemical formula of hypochlorous acid is. |
HCl
HOCl
H<sub>2</sub>CO<sub>3</sub>
HF
|
10 |
Swimming pools are cleaned by the process. |
Chlorination
Hydrogenations
Saponification
None of them
|
11 |
Which organ cause to function during Jaundice? |
Liver
Kindney
Stomach
Large intestine.
|
12 |
A disease is caused by excess of bile pigments in the blood is. |
Typhoid
Jaundice
Cholera
Dysentery
|