Which of the organic compounds will give red colour in Lassaigne test?
Equal weights of Zn metal and iodine are mixed together and is completely converted to What fraction by weight of original Zn remains unreacted? (Zn = 65, I = 127)
changes to on reaction with . There is:
Which of the following has maximum mass?
The mass of one atom of hydrogen is approximately
5.6 L of a gas at NTP are found to have a mass of 11 g. The molecular mass of the gas is
10 mL of a hydrocarbon on complete combustion gave 30 mL of and 20 mL of Molecular formula of the hydrocarbon is:
0.63 g of a dibasic acid neutralises 100 mL of 0.1 N NaOH solution. Molar mass of dibasic acid is:
Silver salt of a diabasic acid has 27% silver. Molar mass of dibasic acid is:
Depression in freezing point of 1 molal urea solution is Depression in freezing point when 0.18 g of a non-electrolyte is added to 10 g water is Thus, molar mass of the non-electrolyte is:
6 g of the organic compound on heating with NaOH gave which is neutralised by 200 mL of 1 N HCl. Percentage of nitrogen is: