Advertisements
Advertisements
Question
Give two tests of the following:
Oxygen
Solution
Oxygen : It is an odourless and colourless gas and turns alkaline pyrogallol brown. It can also be tested by brining a lighted splinter near the gas, if the splinter starts glowing, the gas is oxygen.
APPEARS IN
RELATED QUESTIONS
Fill in the blank.
Molecular weight of a gas is twice its __________.
Calculate the percentage composition of oxygen in lead nitrate [Pb(NO3)2]. [Pb = 207, N= 14, O = 16]
10g of NaCl solution is mixed with 17g of silver nitrate solution. Calculate the weight of silver chloride precipitated.
AgNO3 + NaCl → AgCI + NaNO3
If a crop of wheat removes 20 Kg of nitrogen per hectare of soil, what mass of the fertilizer calcium nitrate,Ca(NO3)2 would be required to replace nitrogen in 10 hectare field? (N = 14, O = 16, Ca = 40)
Calculate the percentage of sodium in sodium aluminium fluoride (Na3AIF6).
[F = 19, Na = 23, Al = 27]
A certain gas 'X' occupies a volume of 100 cm3 at S.T.P. and weighs 0.5 g. Find its relative molecular mass.
Find the weight of 0.5 mole of O2.
The mass of 5.6 litres of a certain gas at S.T.P. is 12 g. What is the relative molecular mass or molar mass of the gas?
Calculate the number of atoms of each kind in 5.3 grams of sodium carbonate.
Calculate the mass of nitrogen supplied to soil by 5 kg of urea [CO(NH2)2].
[O = 16; N = 14; C = 12; H = 1]
