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प्रश्न
State one test by which sodium chloride can be distinguished from sugar.
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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
Name the following:
The property of element by virtue of which atoms of the element can link to each other in the form of a long chain or ring structure.
What would be the electron-dot structure of carbon dioxide which has the formula CO2?
What type of bonds are present in Cl2 molecule? Draw their electron-dot structures.
The solution of one of the following compounds will not conduct electricity. This compounds is:
(a) NaCl
(b) CCl4
(c) MgCl2
(d) CaCl2
What are the conditions necessary for the formation of covalent molecules?
State the type of bonding in the following molecule.
Water
Draw an electron dot diagram for the formation of the following. State the type of bonding present in them.
Hydroxyl ion
Give two example in following case:
Gaseous non polar compounds
Molecular formula of Propane is C3H8 , write the structural formula of propane.
(a) Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d) given below
The type of bonding in X will be
Draw an electron dot diagram to show the formation of the following compound.
Methane
What is the difference between :
Ionic compounds and covalent compounds
Name a greenish-yellow gas which also bleaches.
Write scientific reason.
Benzene compounds are called aromatic compounds.
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)
 |
The correct structural formula of butanoic acid is -
Which of the following statements are usually correct for carbon compounds? These
- are good conductors of electricity
- are poor conductors of electricity
- have strong forces of attraction between their molecules
- do not have strong forces of attraction between their molecules.
Which of the following compound(s) possesses a high melting point?
