Brass gets discolored in air because of the presence of
which of the following gases in air?
1 Carbon dioxide
2 Oxygen
3 Hydrogen sulphide
4 Nitrogen
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Which of the following reagents gives a silver mirror test when added to aldehydes? 1 Fehling’s solution 2 Tollen’s Reagent 3 Ebaeyer’s Reagent 4 Nessler’s Reagent
What is the colouring matter in plants called
Which of the following types of photons has the highest energy? 1 Visible radiations 2 Radio waves 3 Gamma rays 4 X-rays
What is the Ecology ?
What is the Nutrition ?
The average salinity of sea water is 1 2% 2 2.5% 3 3% 4 3.5%
The material used for bleaching paper pulp is 1 Chlorine 2 Caustic soda 3 Sodium hypochlorite 4 Lime
Among the various allogropes of carbon 1 Diamond is the hardest, lamp black is the softest 2 Diamond is the hardest, coke is the softest 3 Coke is the hardest, graphite is the softest 4 Diamond is the hardest, graphite is the softest
The metallic constituents of hard water are 1 Magnesium, calcium and tin 2 Iron, tin and calcium 3 Calcium, ,magnesium and iron 4 None of these
why our head's weight not feel our body?
Why capacitor is not allow dc ?? What the reason?
The hardest substance available on earth is 1 Platinum 2 Coal 3 Diamond 4 Gold
13 Answers FCI, University of Ilorin,