Why can"t we prepare HBr by heating KBr with sulphuric acid ?
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Why is it necessary to use acetic acid and not sulphuric acid for acidification of sodium
Although the addition of sulphuric acid will precipitate lead sulphate, the addition of acetic acid will ensure a complete precipitation of sulphur in the form of lead sulphate due to...
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In the presence of peroxide addition of HBr to prepare propene takes place according to anti Markovnikov’s rule
Homolysis of HCl does not takes place and in the case of HI homolysis takes place but the iodide free radical combine with the similar free radical to form I2...
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What happens when a. Dilute sulphuric acid is poured on a copper plate? b. Iron nails are placed in copper sulphate solution?
(a) When dilute sulphuric acid is poured on a copper plate, there will be evolution of hydrogen gas along with the formation of blue color crystals of copper sulphate. CuSO4 +...
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Which compound forms a colored aqueous solution? (a)CaCl22 (b)CrCl3 (c)NaOH (d)KBr
Colored aqueous solutions are a characteristic of transition compounds. The only transition compound in the above choices is CrCl3. Cr is a transition element. Hence option (b) is the correct answer.
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How does conc. of sulphuric acid change in lead storage battery when current is drawn from it ?
Concentration of sulphuric acid decreases
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During electrolysis of water a few drops of sulphuric acid is added into water. Why?
pure water is a bad conductor of electricity. By adding a few drops of sulphuric acid, it becomes a good conductor of electricity
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Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of
(c) both physical change.
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Which of the following is (are) an endothermic process(es)? (i) Dilution of sulphuric acid
(D) (ii) and (iv)
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Which of the following is the key step in the manufacture of sulphuric acid ?
(b) The key step in the manufacture of H2 SO4 is catalystic oxidation of SO2 with O2 to give SO3 in presence of V2O5
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Which is the weakest out of HF, HCl, HBr and HI? (a) HF (b) HCl (c) HBr (d) HI
(a) HF, due to intermolecular H-bonding is weakest among HX acids
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