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प्रश्न
Give the formula of the compound that would be formed by the combination of the following pair of elements:
K and H
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उत्तर
KH
APPEARS IN
संबंधित प्रश्न
State the reason to explain why covalent compounds "have low melting and boiling points."
Name a carbon containing molecule which has two double bonds.
Write the electron-dot structure for the following molecule.
Cl2
What type of bonds are present in methane (CH4) and sodium chloride (NaCl)?
Explain why, ionic compounds conduct electricity in solution whereas covalent compounds do not conduct electricity.
State any two uses of graphite.
One of the following is not an allotrope of carbon. This is:
(a) diamond
(b) graphite
(c) cumene
(d) buckministerfullerene
You can buy solid air-freshners in shops. Do you think these substance are ionic or covalent? Why?
Complete the following:
When the nuclei of two different reacting atoms are of ______ mass, then a bond so formed is called ______ covalent bond. (equal, unequal, polar, non-polar)
Give two example in following case:
Gaseous non polar compounds
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Ethene
(a) Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d) given below
In the liquid state, X will
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)
 |
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
 |
Give an example for each of the following statement.
A compound in which three covalent bonds are formed.
Acetic acid was added to a solid X kept in a test tube. A colourless, odourless gas Y was evolved. The gas was passed through lime water, which turned milky. It was concluded that ______.
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.
