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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)
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.
Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.
Explain why dilute hydrochloric acid cannot be concentrated by boiling beyond 22.2%.
How will the action of dilute hydrochloric acid enable you to distinguish between sodium thiosulphate and sodium sulphite?
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
Write balanced equcation for the following reaction:
Manganese (IV) oxide and concentrated hydrochloric acid.
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
Write an equation for the reaction of hydrochloric acid on manganese (IV) oxide.
