Which of the following salt on heating w...

Which of the following salt on heating with solid `K_(2)Cr_(2)O_(7)` and Conc. `H_(2)SO_(4)` , orange red vapours are evolved which turn NaOH solution yellow.

NaBr

NaCl

NaNo3

NaI

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Which of the following soled salt on heating with solid K_(2)Cr_(2)O_(7) and conc. H_(2)SO_(4) orange red vapours are evolved which turn aquous NaOH solution yellow?

Solid KCl, when heated with solid K_(2)Cr_(2)O_(7) and concentrated H_(2)SO_(4) , gives red vapours (a) that turn NaOH solution yellow (b). The yellow solution, when acidified with acetic acid and treated with lead acetate, gives a yellow precipitate (c). which of the following is true with respect to a, b and c?

Which of the following salt on heating with concentrated H_(2)SO_(4) , coloured vapours do not evolve?

The reddish brown gas produced by heating KCl with solid K_2Cr_2O_7 and conc. H_2SO_4 is

A colourless inorganic compound (A) imparts a green colour to flame. Its solution does not give white precipitate with H_(2)S . Its solution gives white precipitate with conc. H_(2)SO_(4) which is insoluble in dil. H_(2)SO_(4) . When it is heated with K_(2)Cr_(2)O_(7) and conc. H_(2)SO_(4) , a red gas is evolved. The gas when passed through aqueous NaOH solution turns it Yellow. Identify the compound (A) and give chemical reactions.

A white sublimable solid, when boiled with an NaOH solution, gives a colourless gas that turns nessler's reagent brown. The solid on being heated with solid K_(2)Cr_(2)O_(7) and concentrated H_(2)SO_(4) , gives red brown vapours. The white solid can be:

A solid laboratory reagent (A) give following reactions. (i) It impart green colour of flame : (ii) Its solution does not give ppt. on passong H_(2)S . (iii) When it is heated with K_(2)Cr_(2)O_(7) and conc. H_(2)SO_(4) , a red gas (B) is evolved. The gas when passed in aq. NaOH solution turns it yellow (C). Identify (A), (B), (C) giving chemical reactions.

K_(2)Cr_(2)O_(7)+NaoH to CrO_(4)^(2-)

On heating a mixture of NaCl, K_(2)Cr_(2)O_(7) and conc. H_(2)SO_(4) which of the following is formed ?

AAKASH INSTITUTE ENGLISH- ALCOHOLS, PHENOLS AND ETHERS-Assignment Section -D (Assertion - reason type question)

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