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प्रश्न
Fill in the following blank with suitable word:
The general formula CnH2n for cycloalkanes is the same as that of ...........
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उत्तर
The general formula CnH2n for cycloalkanes is the same as that of alkenes.
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संबंधित प्रश्न
Give one example of a molecule containing a double covalent bond
Fill in the blank in the following sentence:
In forming N2 molecule, .............. electrons are shared by each atom of nitrogen.
What is the atomic number of carbon. Write its electronic configuration.
Give the formula of the compound that would be formed by the combination of the following pair of elements:
Al and Cl2
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of nitrogen, N2, is formed from two nitrogen atoms. What name is given to this type of bonding? (Atomic number of nitrogen is 7)
Explain why, diamond is hard while graphite is soft (though both are made of carbon atoms).
The solution of one of the following compounds will not conduct electricity. This compounds is:
(a) NaCl
(b) CCl4
(c) MgCl2
(d) CaCl2
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?
What is the difference between ionic compounds and polar covalent compounds?
Draw electron - dot structure and structural formula of methane.
Explain the following:
Covalent compounds have low melting and boiling point.
Choose the correct answer from the options given below
Condition favorable for formation of a covalent bond is
Acids dissolve in water to produce positively charged ions. Draw the structure of these positive ions.
Give reason as to why hydrogen chloride can be termed as a polar covalent compound.
State the type of bond formed when the combining atom has zero E.N. difference.
Name gas with a rotten egg smell.
What are Allotropes? Name any two allotropic forms of carbon. Give one use of it.
Write an Explanation.
Alkene
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
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______ is an example of a covalent compound having a high melting point.
