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प्रश्न
What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – the eight atoms of sulphur are joined together in the form of a ring.)
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उत्तर
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संबंधित प्रश्न
Name the element whose one of the allotropic forms is buckminsterfullerene.
Fill in the blank in the following sentence:
In forming N2 molecule, .............. electrons are shared by each atom of nitrogen.
Give the formula of the compound that would be formed by the combination of the following pair of elements:
K and H
Which inert gas does the Cl atom in HCl resemble in electron arrangement?
Draw the electron-dot structure of N2 and state the type of bonding.
Explain why, graphite can be used as a lubricant but diamond cannot.
The solution of one of the following compounds will not conduct electricity. This compounds is:
(a) NaCl
(b) CCl4
(c) MgCl2
(d) CaCl2
Give two example in following case:
Gaseous non polar compounds
Explain the structure of Hydronium ion.
Name a neutral covalent molecule which contains one lone pair of electrons.
Compare the compounds carbon tetrachloride and sodium chloride with regard to solubility in water and electrical conductivity.
Explain why carbon tetrachloride does not dissolve in water.
What is the difference between :
Ionic compounds and covalent compounds
What are Allotropes? Name any two allotropic forms of carbon. Give one use of it.
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)
 |
Mineral acids are stronger acids than carboxylic acids because
- mineral acids are completely ionised
- carboxylic acids are completely ionised
- mineral acids are partially ionised
- carboxylic acids are partially ionised
The table shows the electronic structures of four elements.
| Element | Electronic Structure |
| P | 2, 6 |
| Q | 2, 8, 1 |
| R | 2, 8, 7 |
| S | 2, 8, 8 |
- Identify which element(s) will form covalent bonds with carbon.
- “Carbon reacts with an element in the above table to form several compounds.” Give suitable reason.
Write notes on the characteristics of covalent compounds.
The number of single and double bonds present in a molecule of benzene (C6H6) respectively, are ______.
