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प्रश्न
What is the function of HCI in preparation of aqua-regia?
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उत्तर
HCI dissolves noble metals like gold and platinum. HCI with HNO3 reacts to produce nascent chlorine which reacts with gold, platinum etc. to form their respective chiorides.
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संबंधित प्रश्न
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.
Write a balanced equation for the action of dilute hydrochloric acid on sodium sulphide.
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
Name the following:
Salt obtained by heating sodium chloride with concentrated sulphuric acid below 200 degree celcius.
Write balanced equcation for the following reaction:
Manganese (IV) oxide and concentrated hydrochloric acid.
Give a chemical test to distinguish between the following pair of compounds:
Hydrogen chloride gas and hydrogen sulphide gas
Write observation:
Lead nitrate solution is mixed with dilute hydrochloric acid and heated.
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D, and E.
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
