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प्रश्न
State the use of aqua-regia.
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उत्तर
It is used to dissolve noble metals like gold and platinum.
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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 your observation when dilute hydrochloric acid is added to a lead nitrate solution and the mixture is heated.
Select from the list the gas that matches the description given in case
[ammonia, ethane, hydrogen chloride, hydrogen sulfide, ethyne]
This gas has a characteristic rotten egg smell.
State one relevant observation for the following
When hydrogen sulfide gas is passed through lead acetate solution.
Dry hydrogen chloride gas can be collected by ________ displacement of air. (downward / upward)
Give reason for the following:
An aqueous solution of chlorine in acidic in nature
Hint : Cl2 + H2O ⟶ HCl +HClO
What is the function of HCI in preparation of aqua-regia?
Fill in the blank:
On addition of silver nitrate to hydrochloric acid ___________ precipitate is formed which is soluble in ____________
How will you distinguish between the two black samples, CuO and MnO2 with a chemical test?
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D, and E.
