Statement-I: Borax bead test is applicable only to coloured salt. Statement-II: In borax bead test, voloured salts are decmosed to give coloured metal meta borates.A. If Assertion (A) and Reason (R ) both are correct and (R ) is the correct explanation of (A )B. If Assertion (A) and Reason (R ) both are correct but ® is not the correct explanation of (A)C. If (A) is correct but (R ) is incorrectD. If (A ) is incorrect but (R ) is correct.

Statement-I: Borax bead test is applicable only to coloured salt. Stat

1.	Statement-I: Borax bead test is applicable only to coloured salt. Statement-II: In borax bead test, voloured salts are decmosed to give coloured metal meta borates.A. If Assertion (A) and Reason (R ) both are correct and (R ) is the correct explanation of (A )B. If Assertion (A) and Reason (R ) both are correct but ® is not the correct explanation of (A)C. If (A) is correct but (R ) is incorrectD. If (A ) is incorrect but (R ) is correct.
Answer» Correct Answer - 3 `CH_(3)COCH_(2)OH+Ag_(2)Ooverset(Delta)(rarr)CH_(3)COCHO+underset("Silver mirror")(2Agdarr)+H_(2)O`

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A sodium salt on treatment with `MgCl_(2)` gives white precipitate only on heating. The anion of sodium salt isA. `HCO_(3)^(-)`B. `CO_(3)^(2-)`C. `NO_(3)^(-)`D. `SO_(4)^(2-)`
To a metal nitrate, when KI solution is added, a black precipitate is produced at first , on additing excess of KI, orange solution is produced. Identify the meatl ionA. `Hg^(2+)`B. `Bi^(3+)`C. `Cu^(2+)`D. `Pb^(2+)`
A metal nitrate reacts with `KI` to give a black precipitate which on addition of excess of `KI` convert into orange colour solution. The cation of metal nitrate isA. `Hg^(2+)`B. `Bi^(3+)`C. `Sn^(2+)`D. `Pb^(2+)`
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Assertion : Change in colour of the acidic solution of breath is used as a test for drunken driver. Reason : Change in colour is due to complexation of alcohol with potassium dichromate.
`S_(1) :` Silver iodide is fairly soluble in hypo solution. `S_(2) :` Heavy metal chloride like `AgCl,HgCl_(2)` etc. also respond to Chromyl chloride test. `S_(3) :` Bromine reacts with `KI` liberating violet vapours of iodine. `S_(4) :` Diphenylamine reagent test is also given by nitrites chlorates, bromates, iodates, etc. in addition to `NO_(3)^(-)`A. `T T T F`B. `T F T T`C. `T T F F `D. `F F T T `
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