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प्रश्न
Element A has 2 electrons in its M shell. Element B has atomic number 7.
If B is a diatomic gas, write the equation for the direct combination of A and B to form a compound.
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उत्तर
\[\ce{3A + B2 -> A3B2}\]
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संबंधित प्रश्न
What is the atomic number of carbon. Write its electronic configuration.
What type of chemical bond is present in the chlorine molecule? Explain your answer.
How will you find out which of the water soluble compound A or B is ionic?
Distinguish between ionic and covalent compounds under the following properties:
(i) Strength of forces between constituent elements
(ii) Solubility of compounds in water
(iii) Electrical conduction in substances
Explain the following term with an example.
Unsaturated hydrocarbon
Taking hydrogen chloride and methane as examples, distinguish between a polar covalent bond and a non polar covalent bond.
Give examples for the following:
Two gaseous polar compounds.
In the formation of electrovalent compounds, electrons are transferred from one element to another. How are electrons involved in the formation of a covalent compound?
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc} \phantom{..}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ \phantom{..}|\phantom{....}|\phantom{....}|\\ \ce{H - C - C- C- H}\\ \phantom{.}|\phantom{....}|\phantom{....}|\\ \ce{H - C - H}\\ |\\\ce{H}\end{array}\] |
Identify the incorrect statement and correct them.
- Like covalent compounds, coordinate compounds also contain charged particles (ions). So they are good conductors of electricity.
- Ionic bond is a weak bond when compared to Hydrogen bond.
- Ionic or electrovalent bonds are formed by mutual sharing of electrons between atoms.
- Loss of electrons is called Oxidation and gain of electron is called Reduction.
- The electrons which are not involved in bonding are called valence electrons.
