A. Iodine oxidises sodium thiosulphate to sodium tetrathionate
B. Sodium thiousulphate is soluble in water
C. Ozone is used to identify the presence of unsaturation in alkenes
D. Sodium thiosulphate reacts with iodine to form sodium sulphate
Which one of the following pairs of reactants does not form oxygen when they<br>react with each other
Bauxite is a mineral for the extraction of :
The chemical formula of feldspar is
The formula of the product formed, when sodium thiosulphate solution is added to silver bromide is<br>
The following are some statements related to VA group hydrides,<br>I . Reducing property increases from NH<sub>3</sub> to BiH<sub>3</sub>.<br>II..Tendency to donate lone pair decreases from NH<sub>3</sub> to BiH<sub>3</sub><br>III.Thermal stability of hydrides decreases from NH3 to BiH3.<br>IV. Bond angle of hydrides decreases from NH<sub>3</sub> to BiH<sub>3</sub>.<br>The correct statements are<br>
Which one of the following noble gases is used in miner's cap lamps
Which of the following is not a peroxy acid
Calorific value of producer gas is low because of
Which of the following is used for making optical instruments ?
CFCl<sub>3</sub> is responsible for the decomposition of ozone to oxygen. Which of the following reacts with ozone to form oxygen ?