मराठी

Why is Diamond Used for Making Cutting Tools (Like Glass Cutters) but Graphite is Not? - Science

Advertisements
Advertisements

प्रश्न

 Why is diamond used for making cutting tools (like glass cutters) but graphite is not?

Advertisements

उत्तर

Diamond is the hardest, naturally occuring material known. Owing to its rigid structure, it can be used as glass cutters. Whereas graphite is a layered structure of carbon atoms and is very soft so, it cannot be used for making cutting tools.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Carbon And Its Compounds - Exercise 1 [पृष्ठ २२१]

APPEARS IN

लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 4 Carbon And Its Compounds
Exercise 1 | Q 25.2 | पृष्ठ २२१

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

Why covalent compounds are different from ionic compounds?


State the reason why carbon can neither form C4+ cations nor C4− anions but forms covalent compound.


Choose the most appropriate answer from the following list of oxides which fit the description.

A covalent oxide of a metalloid.


How does graphite act as a lubricant?


What would be the electron-dot structure of carbon dioxide which has the formula CO2?


Write the electron-dot structure for the following molecule.

Cl2


Give two example in following case:
Gaseous polar compounds


Elements forming ionic compounds attain noble gas electronic configuration by either gaining or losing electrons from their valence shells. Explain giving reason why carbon cannot attain such a configuration in this manner to form its compounds. Name the type of bonds formed in ionic compounds and in the compounds formed by carbon. Also explain the reason why carbon compounds are generally poor conductors of electricity.


Draw an electron dot structure of the following molecule. (Without showing the circle) :
Ethene


Explain the following term with example.
Covalent bond


Write answer as directed.
Saturated hydrocarbons are classified into three types. Write these names giving one example each.


Give reason as to why hydrogen chloride can be termed as a polar covalent compound.


Draw an electron dot diagram to show the formation of the following compound.
Methane


Element A has 2 electrons in its M shell. Element B has atomic number 7.

If B is a diatomic gas, write the equation for the direct combination of A and B to form a compound.


Potassium (Atomic No. 19) and chlorine (Atomic No. 17) react to form a compound. On the basis of electronic concept, explain

(i) oxidation

(ii) reduction

(iii)oxidising agent

(iv)reducing agent


Name two compounds that are covalent when taken pure but produce ions when dissolved in water.


Write a short note.

Aromatic hydrocarbons


Complete the following activity.

Write the names of the hydrocarbons for the following structural formula.

(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)

 

Although metals form basic oxides, which of the following metals form an amphoteric oxide?


A molecule of ammonia (NH3) has


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×