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प्रश्न
In preparation of Aqua regia hydrochloric acid and _______ acid are mixed.
पर्याय
sulphuric acid
nitric acid
carbonic acid
phosphoric acid
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उत्तर
In preparation of Aqua regia hydrochloric acid and nitric acid acid are mixed.
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संबंधित प्रश्न
Give one example each of which illustrates the following characteristics of a chemical reaction:
evolution of a gas
What do you observe when dilute sulphuric acid is added to granulated zinc?
What do you observe when a few pieces of iron are dropped in a blue solution of copper sulphate?
What do you observe when silver nitrate is added to a solution of sodium chloride?
How will you obtain Magnesium oxide from magnesium.
Also give balanced equations for the reactions
What do you observe when magnesium ribbon is burnt in oxygen?
What is meant by the metal reactivity series ? State its importance, (any two points).
Write chemical equation for the event.
Iron filings are dropped in aqueous solution of copper sulphate.
Write the chemical equation for the event.
A reaction was brought about between ferric oxide and aluminium.
Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.
State what is meant by the ‘reactivity series of metals’
Give a balanced equation for the reversible catalytic reaction involving nitrogen as one of the reactants.
Complete the statement by filling in the blank with the correct word:
The metal which reacts with steam and the reaction is reversible is ________.
Explain the following reaction with the balanced equation.
Reaction of aluminium with oxygen
Observe the following diagram and identify the type of reaction and write observation.
Which among the following statements is incorrect for magnesium metal?
Which among the following alloys contain mercury as one of its constituents?
A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature. Identify A and B. Write down the reactions of oxide B with HCl and NaOH.
A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify M and black coloured product and also explain the reaction of M with oxygen.
A solution of CuSO4 was kept in an iron pot. After few days the iron pot was found to have a number of holes in it. Explain the reason in terms of reactivity. Write the equation of the reaction involved.
