Which of the following statements is not corr | vedclass

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Question

(A) The correct answer is $A$. Heating potassium permanganate $(KMnO_4)$ results in the formation of potassium manganate $(K_2MnO_4)$,manganese dioxid

Vedclass · Accepted Answer

Potassium permanganate on heating gives potassium manganate and manganese dioxide only.

Vedclass · Answer

(A) The correct answer is $A$. Heating potassium permanganate $(KMnO_4)$ results in the formation of potassium manganate $(K_2MnO_4)$,manganese dioxide $(MnO_2)$,and oxygen gas $(O_2)$. The reaction is: $2KMnO_4 \xrightarrow{\Delta} K_2MnO_4 + MnO_2 + O_2$. Since the statement in option $A$ claims it gives only potassium manganate and manganese dioxide,it is incorrect because oxygen is also produced. Phosphine $(PH_3)$ is indeed used in smoke screens (Holme's signals). Chlorine's bleaching action is due to oxidation in the presence of moisture. Noble gases have weak van der Waals forces,leading to very low boiling points.

Which of the following statements is not correct?

Similar Questions

Among the following,which is the strongest oxidising agent?

Which of the following is the correct order of reactivity of halogens with alkali?

Arrange the following in the order of property indicated for each set:
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$(ii)$ $HF, HCl, HBr, HI$ - increasing acid strength.
$(iii)$ $NH_{3}, PH_{3}, AsH_{3}, SbH_{3}, BiH_{3}$ - increasing base strength.

$HI$ cannot be prepared by the action of conc. $H_2SO_4$ on $KI$ because:

Which of the following halogens is the most basic element?

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