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State One Test by Which Sodium Chloride Can Be Distinguished from Sugar. - Science

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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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अध्याय 3: Metals and Non-metals - Exercise 2 [पृष्ठ १६८]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 2 | Q 26.2 | पृष्ठ १६८

वीडियो ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्न

Name the hardest natural substance known.


Why does carbon form compounds mainly by covalent bonding?

 

Explain why, ionic compounds conduct electricity in solution whereas covalent compounds do not conduct electricity.


What is diamond? Of what substance is diamond made?


 What is graphite?


The atomic numbers of four elements P, Q, R and S are 6, 10, 12 and 17 respectively. Which two elements can combine to form a covalent compound?
(a) P and R
(b) Q and S
(c) P and S
(d) R and S


Give two example in following case:

Solid covalent compounds


Taking hydrogen chloride and methane as examples, distinguish between a polar covalent bond and a non polar covalent bond.


Acids dissolve in water to produce positively charged ions. Draw the structure of these positive ions.


An element L consists of molecules.
What type of bonding is present in the particles that make up L?


Fill in the blank from the choice given in bracket.
The compound that does not have a lone pair of electrons is ___________. (Water, Ammonia, carbon tetrachloride)


Elements Q and S react together to form an ionic compound. Under normal conditions, which physical state will the compound QS exist in?


Number of valence electrons in a carbon atom is _______.


Complete the following activity.

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

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

\[\begin{array}{cc}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\\\ce{H - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\\\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}
\end{array}\]
 

Give an example for each of the following statement.

Formation of coordinate covalent bond between NH3 ➝ BF3 molecules


A molecule of ammonia (NH3) has


The bond which is formed by the mutual sharing of electrons is called ______ bond.


Assertion (A): Melting point and boiling point of ethanol are lower than that of sodium chloride.

Reason (R): The forces of attraction between the molecules of ionic compounds are very strong.


Carbon can neither form C4- cation nor C4 anion. Why?


Name the following:

\[\ce{CH3 - CH2CH = CH2}\]


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