NaCl (solid) + K_2Cr_2O_7 (solid) + conc. H_2 | vedclass

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Question

(A) The reaction between $NaCl$,$K_2Cr_2O_7$,and concentrated $H_2SO_4$ is known as the Chromyl Chloride test.The reaction is: $4NaCl + K_2Cr_2O_7 + 6

Vedclass · Accepted Answer

$+6$

Vedclass · Answer

(A) The reaction between $NaCl$,$K_2Cr_2O_7$,and concentrated $H_2SO_4$ is known as the Chromyl Chloride test.The reaction is: $4NaCl + K_2Cr_2O_7 + 6H_2SO_4 \rightarrow 2CrO_2Cl_2 + 2KHSO_4 + 4NaHSO_4 + 3H_2O$.Here,$X$ is Chromyl chloride $(CrO_2Cl_2)$.In $CrO_2Cl_2$,let the oxidation state of $Cr$ be $x$.$x + 2(-2) + 2(-1) = 0$ $\Rightarrow x - 4 - 2 = 0$ $\Rightarrow x = +6$.Thus,the oxidation state of the central atom $(Cr)$ in $X$ is $+6$.

Column-$I$	Column-$II$
$(a) IBr$	$(i)$ Orange solid
$(b) ClF_3$	$(ii)$ Yellow-green liquid
$(c) BrF_3$	$(iii)$ Black solid
$(d) ICl_3$	$(iv)$ Colorless gas

$NaCl$ (solid) $+ K_2Cr_2O_7$ (solid) $+$ conc. $H_2SO_4 \xrightarrow{\text{warm}} X$. Reddish brown fumes of $X$. The oxidation state of central atom in compound $X$ is

Similar Questions

Match the following interhalogen compounds with their corresponding physical properties:

Column-$I$ Column-$II$

$(a) IBr$ $(i)$ Orange solid

$(b) ClF_3$ $(ii)$ Yellow-green liquid

$(c) BrF_3$ $(iii)$ Black solid

$(d) ICl_3$ $(iv)$ Colorless gas

Which of the following interhalogen compounds is in liquid state at room temperature?

Which of the following substances act as a fluorinating agent?

$A$ greenish yellow gas reacts with an alkali metal hydroxide to form a halate which can be preferentially used in fire works and safety matches,the gas and halate respectively are

The correct order of the thermal stability of hydrogen halides $(HX)$ is:

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