Home
Class 12
CHEMISTRY
The form of BN which is hard as diamond ...

The form of `BN` which is hard as diamond is

A

hexagonal form

B

cubic form with ZnS structure

C

Both of these

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
The cubic form of BN with ZnS structure is as hard as diamond.
Promotional Banner

Topper's Solved these Questions

  • The p-Block Elements (Group 13 and Group 14)

    DISHA PUBLICATION|Exercise Exercise-1: Concept Builder (Topicwise) TOPIC 2: Carbon Family|28 Videos

  • The p-Block Elements (Group 13 and Group 14)

    DISHA PUBLICATION|Exercise Exercise-2: Concept Applicator|30 Videos

  • The p-Block Elements (Group 13 and Group 14)

    DISHA PUBLICATION|Exercise Exercise-2: Concept Applicator|30 Videos

  • THE D- AND F- BLOCK ELEMENTS

    DISHA PUBLICATION|Exercise EXERCISE - 2 CONCEPT APPLICATOR|30 Videos

  • THE P-BLOCK ELEMENTS (GROUP 15, 16, 17 & 18)

    DISHA PUBLICATION|Exercise Exercise|110 Videos

Similar Questions

Explore conceptually related problems

Which one is hard base ?

Which is hard in nature-

The substance as hard as hard as diamond is

Consider the following statements : 1. Diamond is hard and graphite is soft. 2. Diamond is soft and graphite is hard. 3. Diamond is a bad conductor but graphite is a good conductor . 4. Diamond is a good conductor but graphite is a bad conductor. Which of the statements given above is/are correct ?

The hardness of diamond is due to

Which one of the following is not true for the form of carbon known as diamond?

PASSAGE-I : Diamond and graphite are two allotropic forms of carbon which are crystalline in nature. They differ physically but chemically they are similar. Diamond is the hardest crystalline form of carbon. In diamond each carbon atom is linked to four other carbon atoms by covalent bonds. In graphite, each carbon atom is linked to three other carbon atoms by covalent bond. Graphite is relatively soft and greasy. It is a good conductor or electricity. Which of the folowing types of forces bind together the carbon atoms in diamond?

With respect to graphite and diamond, which of the statements given below are correct? (i) Graphite is harder than diamond. (ii) Graphite has higher electrical conductivity than diamond. (iii) Graphite has higher thermal conductivity than diamond. Graphite has higher C-C bond order than diamond.