1 |
The melting point of gold is: |
1000<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>C
1500<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>C
1064<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>C
500<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>C
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2 |
Gold is a best: |
conductor of heat & electricity
not a conductor of electricity
no-conductor of electricity
not a non-conductor
|
3 |
According to U.S Geological Survey Deptt., total gold deposits of the world are: |
10,000 metric tons
20,000 metric tons
30,000 metric tons
77,000 metric tons
|
4 |
During 1999, gold production of the world was: |
100 million troy ounces
50 million troy ounces
81 million troy ounces
150 million troy ounces
|
5 |
In 1850, production of gold was: |
150 million troy ounces
100 million troy ounces
200 million troy ounces
300 million troy ounces
|
6 |
Today, how may countries are mining gold? |
one hundred
ninety-three
fifty
One hundred & ninety-five
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7 |
In which year gold was recognized as international currency? |
1750
1850
1900
1950
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8 |
In the world, largest gold deposits are in: |
Canada
Brazil
South Africa
U.S.A
|
9 |
In most of the solvents, gold is: |
dissolve-able
undissolve-able
may be dissolve
cannot dissolve
|
10 |
Among all metals of the world, gold is a: |
hard metal
soft metal
not soft metal
very hard metal
|
11 |
Among most of the metals, gold is a: |
light metal
heavy metal
very heavy metal
very light metal
|
12 |
Affect of air, temperature and humidity on gold is: |
very frequently
very little
very rare
very slowly
|
13 |
Gold is a: |
common metal
rare metal
not common metal
Very rare metal
|
14 |
Gold is regarded as: |
valued metal
basic metal
beautiful metal
rare metal
|