In fireworks, the green flame is produced because of
1 Mercury
2 Sodium
3 Potassium
4 Barium
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Describe the evolution of science and its impact on society
0 Answers Mahatma Gandhi University,
What is the growth ?
what are advantages & disadvantages of science?
Where is the biggest solar telescope in india situated?
Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction
why is it important that sex cells have half the number of Chromosomes as body cells?
Which of the following types of photons has the highest energy? 1 Visible radiations 2 Radio waves 3 Gamma rays 4 X-rays
The presence of which of the following salts in water causes corrosion in steam boilers? 1 Sodium chloride 2 Magnesium chloride 3 Calcium bicarbonate 4 Potassium bicarbonate
the place where maximum sunlight is present in december . 1. chennai 2.koimbatur 3.banglore 4. kanyakumari
The element found on the surface of the moon is 1 Tin 2 Tungsten 3 Tantalum 4 Titanium
neel armstrong belongs to which country ?
Water gas is prepared by passing 1 Steam over white-hot coke 2 Air over red-hot coke 3 Methane over red-hot coke 4 Steam over heated sulphur
Biological Sciences 
