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IIT-JEE PREVIOUS YEAR (CHEMISTRY)-EXTRACTION OF METALS-JEE Main And Advanced
- Dilute HCI oxidises melting Fe to Fe^(2+).
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- Silver fluoride is fairly soluble in water.
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- The coordination number of Al in the crystalline state of AlCl(3) is .
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- The number of water molecule(s) derectly bonded to the metal centre in...
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- Write the balanced chemical equations for developing a black and white...
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- A(1) and A(2) are two ores of metal M.A(1) on calcination gives a blac...
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- Which one is more soluble in diethyl ether : anhydrous AlCl(3) or hydr...
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- Write down the reactions involved in the extraction of Pb. What of the...
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- Write the balanced chemical equation for developing photographic films...
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- Write the chemical reactions involved in the extraction of metallic si...
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- In moist air, copper corrodes to produce a green layer on the surface....
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- When the ore haematite is burnt in air with coke around 2000 K along w...
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- Give balance equation for the reaction of aluminium with aqueous sodiu...
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- Write a balanced equation for the reaction of argentite with KCN and n...
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- Give reasons for the following. "Although aluminium is above hydrogen ...
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- Complete the following reaction: Sn+2KOH+4H(2)Orarr……+…….
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- Give briefly the isolation of magnesium from sea water. Give equation...
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- Calculate the number of moles of Cu and HNO(3) to give NO and NO(2) in...
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- Write balanced equations for "the extraction of copper from pyrites by...
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- Give balanced equations for the following. "Extraction of silver fro...
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