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प्रश्न
State one test by which sodium chloride can be distinguished from sugar.
उत्तर
Sodium chloride and sugar can be distinguished by the electrical conductivity test. Sugar, being a covalent compound, does not conduct electricity when dissolved in water but sodium chloride when dissolved in water conducts electricity.
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संबंधित प्रश्न
Write the number of covalent bonds in the molecule of butane, C4H10.
Explain why carbon forms compounds mainly by covalent bond.
Name the black substance of pencil. Will the current flow through the electrical circuit when we use the sharpened ends of the pencil to complete the circuit?
What type of bonds are present in Cl2 molecule? Draw their electron-dot structures.
Why does carbon form compounds mainly by covalent bonding?
Explain why, ionic compounds conduct electricity in solution whereas covalent compounds do not conduct electricity.
Explain why, diamond is hard while graphite is soft (though both are made of carbon atoms).
A saturated hydrocarbon has fifty hydrogen atom in its molecule. The number of carbon atoms in its molecule will be
(a) twenty five
(b) twenty four
(c) twenty six
(d) twenty seven
Give two example in following case:
Liquid non polar compounds
Draw all possile structural formulae of compound from their molecular formula given below.
C3H4
Explain the following term with example.
Covalent bond
Molecular formula of Propane is C3H8 , write the structural formula of propane.
Explain the following:
Covalent compounds have low melting and boiling point.
Explain the following:
Non-polar covalent compounds are insoluble in water.
An element L consists of molecules.
What type of bonding is present in the particles that make up L?
What are the term defined below?
A bond formed by share pair of electrons, each bonding atom contributing one electron to the pair.
Write the molecular formula of the given compound.
Acetic acid
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc} \phantom{.........}\ce{H}\\ \phantom{.........}|\\ \ce{H - C ≡ C - C - H}\\ \phantom{.........}|\\ \phantom{.........}\ce{H} \end{array}\] |
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
 |
Cation is formed when ______.
