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प्रश्न
State your observation When moist starch iodide paper is introduced into chlorine gas.
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उत्तर
When moist starch iodide paper is introduced into chlorine gas, chlorine oxidizes iodide to iodine, which shows up as blue when complexed with starch.
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संबंधित प्रश्न
State one relevant observation for given reactions:
Action of dilute Hydrochloric acid on iron (II) sulfide.
Complete the following by selecting the correct option from the choices given:
The metal which does not react with water or dilute H2SO4 but reacts with concentrated H2SO4 is _________. (Al/Cu/Zn/Fe)
State one relevant observation for the following
When hydrogen sulfide gas is passed through lead acetate solution.
Explain why anhydrous HCl is a poor conductor while aqueous HCl is an excellent conductor.
Write an equation for the reaction of hydrochloric acid on caustic soda solution.
How will the action of dilute hydrochloric acid enable you to distinguish between sodium carbonate and sodium sulphite?
MnO2, PbO2 and red lead react with conc. HCl acid to liberate Cl2.
What is the common property being shown by these metal oxides?
Write balanced equation for the following reaction:
Copper oxide and dilute hydrochloric acid.
Select from the list given (a to e) one substances in each case which matches the description given in parts (i) to (v). (Note : Each substance is used only one in the answer)
(a) Nitroso Iron (II) Sulphate
(b) Iron (III) chloride
(c) Chromium sulphate
(d) Lead (II) chloride
(e) Sodium chloride
(i) A compound which is deliquescent
(ii) A compound which is insoluble in cold water, but soluble in hot water
(iii) The compound responsible for the brown ring during the brown ring test of nitrate iron
(iv) A compound whose aqueous solution is neutral in nature
(v) The compound which is responsible for the green colouration when sulphur dioxide is passed through acidified potassium dichromate solution
Write observation:
Lead nitrate solution is mixed with dilute hydrochloric acid and heated.
