MyQuestionIcon

6

You visited us 6 times! Enjoying our articles? Unlock Full Access!

Catenation and Tetravalency

On placing a ...

Question

On placing a glass sheet above a burning kerosene lamp, Naina observed a black coloured substance being formed on it as shown below. This black coloured substance is ______.

A

lampblack

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

plant charcoal

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

activated charcoal

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

coal

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A lampblack
Lampblack is an amorphous form of carbon formed due to the incomplete combustion of carbon compounds. In the given situtation, lampblack is formed due to the incomplete combustion of kerosene oil present in the lamp.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A student carries out the decomposition reaction of lead nitrate to form three simpler substances. One of the substances formed during this reaction is a brown coloured gas whereas another substance formed is a yellow coloured solid.
(a) What is the colour of lead nitrate?
(b) How is the decomposition reaction of lead nitrate carried out?
(c) Name the brown coloured gas produced in this reaction.
(d) Name the yellow solid formed in this reaction.

Q. A substance (A) is water insoluble, on bubbling

C l_{2}

through its suspension in water, it produces a coloured aqueous solution forming a single product. (A) may be :

Q. In an experiment oxygen was added to hydrogen and heated. On burning a substance containing both oxygen and hydrogen water was formed. What is this substance?

Q. Some sugar solution is taken in a test-tube and a little of substance X in powder form is added to it. The mouth of test-tube is closed with a cork and allowed to stand for sometime. On opening the cork, a characteristic smell of substance Y is obtained and a gas Z is also observed to be formed. The gas Z extinguishes a burning matchstick.
(a) What could be (i) X, (ii) Y, and (iii) Z?
(b) What is the process of converting sugar into substance Y by the action of X known as?
(c) What type of respiration is exhibited by X in the above process?

Q. In a certain change, colour and the magnetic properties of a substance changed. What reaction might this be?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Versatile Nature of Carbon

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Catenation and Tetravalency

Standard IX Chemistry

Join BYJU'S Learning Program

CrossIcon