MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Preparation of Haloalkanes from Alcohol

What type of ...

Question

What type of compounds are formed(acidic, basic or neutral) when chromium trioxide and manganese heproxide(Mn2O7) [where, 2 and 7 are in small letters] are dissolved in water?

Open in App

Solution

When Mangenese heptoxide (Mn₂O₇) react with H₂O it gives permangenic acid ( HMnO₄ ).
Mn₂O₇ + H₂O $\to$ 2HMnO₄
Chromium trioxide (CrO₃)dissolves in water to give chromic acid ( H₂CrO₄) and dichromic acid (H₂Cr₂O₇ )
2CrO₃ + H₂O $\to$ H₂Cr₂O₇
CrO₃ + H₂O $\to$ H₂CrO₄

Suggest Corrections

thumbs-up

0

Similar questions

Q. What happens when the

1^{\circ}

2^{\circ}

alcohols are oxidised by anhydrous chromium trioxide

(C r O_{3})

? Write chemical equations.

Q. Which compound is formed when sulphur trioxide is dissolved in water?

Q. Explain salt hydrolysis. Name two salts which are (a) acidic (b) basic (c) neutral, when dissolved in water.

Q. Choose the correct answer from the alternative given.
When an oxide of manganese (P) is fused with KOH in the presence of an oxidizing agent and dissolved in water, it gives a dark green solution of compound (Q). Compound (Q) disproportionates in neutral or acidic solution to give purple compound (R). An alkaline solution of compound (R) oxidizes potassium iodide solution to a compound (S) and compound (P) is also formed. Compounds P to S are:

Q. Consider the following statements regarding manganese
1. Manganese is a reactive when pure and as a powder it will burn in oxygen, It reacts with water and dissolves in dilute water.
2. The prime use of manganese is manufacturing of steel and ferro-manganese alloys.
Which among the following statement/s given above is/are correct?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Synthesis of Alkyl Halides

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Preparation of Haloalkanes from Alcohol

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon