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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
Ethane, with the molecular formula C2H6 has ______.
Choose the correct answer from the options given below:
Which of the following is a common characteristic of a covalent compound?
1) high melting point
2) consists of molecules
3) always soluble in water
4) Conducts electricity when it is in the molten state
State whether the following statement is true or false:
Diamond and graphite are the covalent compounds of carbon element (C)
What type of bonds are present in CH4 molecule? Draw their electron-dot structures.
Give one example of a molecule containing a double covalent bond
What type of bonding would you expect between Carbon and Chlorine?
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of oxygen, O2, is formed from two oxygen atoms. What name is given to this type of bonding? (At. No. of oxygen = 8)
The solution of one of the following compounds will not conduct electricity. This compounds is:
(a) NaCl
(b) CCl4
(c) MgCl2
(d) CaCl2
Out of KCl, HCl, CCl4 and NaCl, the compounds which are not ionic are:
(a) KCl and HCl
(b) HCl and CCl4
(c) CCl4 and NaCl
(d) KCl and CCl4
State the type of bonding in the following molecule.
Methane
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Methanol
Give examples for the following:
Two gaseous non polar compounds.
Explain the structure of Hydronium ion.
The electronic configuration of N2 is 2, 5. How many electrons in the outer shell of a N atom are not involved in the formation of a nitrogen molecule?
Explain the following:
Water is a polar covalent molecule.
Generally, the melting and boiling point of carbon compounds are found to be less than _______ °C.
List two differences between the properties exhibited by covalent compounds and ionic compounds.
The I.U.P.A.C name of CH3CH2CH = CH2 is?
"Carbon prefers to share its valence electrons with other atoms of carbon or with atoms of other elements rather than gaining or losing the valence electrons in order to attain noble gas configuration." Give reasons to justify this statement.
State the reasons, why carbon cannot
- Lose four electrons to form C4+ cation and
- Gain four electrons to form C4- anion.
How does carbon overcome this problem to form compounds?
