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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
\[\ce{3A + B2 -> A3B2}\]
संबंधित प्रश्न
State the type of bonding in the following molecule.
Hydroxyl ion
Give two example in following case:
Liquid non polar compounds
Explain the following:
Polar covalent compounds are good conductors of electricity.
State the type of bonding in the following molecule.
Water
What do you understand by dipole (polar) molecule?
Explain the following:
Polar covalent compounds conduct electricity?
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?
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)
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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.
