The ratio of pure gold in 18 carat gold is
1 60%
2 75%
3 80%
4 100%
Answers were Sorted based on User's Feedback
1.how many bones are there in our human body? 2.who invented the aeroplane? 3.the full form for h2o is water 4.the name which is heavier is gold 5.name the symtom which is to cure for night blindness?
In an atomic explosion, enormous energy is released which is due to the 1 Conversion of neutrons into protons 2 Conversion of chemical energy into nuclear energy 3 Conversion of mass into energy 4 None of these
Which is the research reactors of bhabha atomic research centre?
A mixture of salt and sand can be separated by 1 Sublimation 2 Dissolving in water 3 Gravity separation 4 Dry distillation
Where is the biggest solar telescope in india situated?
Which of the following metals is a better conductor of electricity? A. Silver B. Copper
Which of the following is a chemical change? 1 Rusting of iron 2 Tempering of iron 3 Melting of iron 4 Bending of iron
Which of the following is used as a moderation in nuclear reactor? 1 Ordinary water 2 Radium 3 Thorium 4 Graphite
in earth 1degree equals how many kilo meters?
Describe the evolution of science and its impact on society
0 Answers Mahatma Gandhi University,
The metal that is present in photo films is 1 Mercury 2 Platimnum 3 Magnesium 4 Silver
Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO