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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
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संबंधित प्रश्न
Explain why carbon forms compounds mainly by covalent bond.
Choose the most appropriate answer from the following list of oxides which fit the description.
A covalent oxide of a metalloid.
Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many hexagons of carbon atoms are present in one molecule of buckminsterfullerene?
Name a carbon containing molecule which has two double bonds.
Give one example of a molecule containing a triple covalent bond.
Draw the electron-dot structure of HCl compound and state the type of bonding.
Describe the structure of graphite with the help of a labelled diagram.
A covalent molecule having a double bond between its atoms is:
(a) Hydrogen
(b) Oxygen
(c) water
(d) ammonia
A solid element X has four electrons in the outermost shell of its atom. An allotrope Y of this element is used as a dry lubricant in machinery and also in making pencil leads.
(a) What is element X?
(b) Name the allotrope Y.
(c) State whether allotrope Y is a good conductor or non-conductor of electricity.
(d) Name one use of allotrope Y (other than lubrication and pencil leads)
(e) Name two other allotropes of element X.
What happens when methane (natural gas) burns in air? Write the chemical equation of the reaction involved.
Draw an electron dot diagram for the formation of the following. State the type of bonding present in them.
Hydroxyl ion
Draw all possile structural formulae of compound from their molecular formula given below.
C4H10
Choose and write the correct option.
Which type of carbon-carbon bonds are present in Vanaspati ghee?
The covalent bond in which the electrons are shared equally between the combining atoms.
Compare the compounds carbon tetrachloride and sodium chloride with regard to solubility in water and electrical conductivity.
An element L consists of molecules.
Why L is heated with iron metal, it forms a compound FeL. What chemical term would you use to describe the change undergone by L?
State the type of bond formed when the combining atom has small E.N. difference.
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
Write the molecular formula of the given compound.
Propylene
Two carbon atoms can always form one or two covalent bonds.
