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प्रश्न
Give the formula of the compound that would be formed by the combination of the following pair of elements:
K and H
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उत्तर
KH
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संबंधित प्रश्न
State the type of bonding in the following molecule.
Water
Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many pentagons of carbon atoms are present in one molecule of buckminsterfullerene?
Fill in the following blank with suitable word:
The form of carbon which is known as black lead is ...........
What is the atomic number of carbon. Write its electronic configuration.
An element E exists in three allotropic forms A, B and C. In allotrope A, the atoms of element E are joined to form spherical molecules. In allotrope B, each atom of element E is surrounded by three other E atoms to form a sheet like structure. In allotrope C, each atom of element E is surrounded by four other E atoms to form a rigid structure.
(a) Name the element E.
(b) What is allotrope A.
(c) What is allotrope B?
(d) What is allotrope C?
(e) Which allotrope is used in making jewellery?
(f) Which allotrope is used in making anode of a dry cell?
Define a covalent bond.
Explain the following term with example.
Unsaturated hydrocarbon
The carbon compound is used in daily life is ______.
Explain the following:
Non-polar covalent compounds are insoluble in water.
Compare the compounds carbon tetrachloride and sodium chloride with regard to solubility in water and electrical conductivity.
State the type of bonding in the following molecule.
Water
Explain why carbon tetrachloride does not dissolve in water.
What is the difference between :
Ionic compounds and covalent compounds
Name the types of Hydrocarbons.
Write an Explanation.
Alkyne
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\phantom{....}|\\\ce{H - C - C - C - H}\\ |\phantom{....}|\phantom{....}|\\\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H} \end{array}\] |
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
 |
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
 |
______ is an example of a covalent compound having a high melting point.
Show the covalent bond formation in nitrogen molecule.
