A. F2, NaOH solution (hot, conc.)
B. F2, H20
C. Cl2, NaOH solution (cold, dilute)
D. CaOCl2, H2S04 (dilute, small amount)
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 ?
What is the correct order of occurrence (% by weight) in air of Ne, Ar and Kr ?