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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
Choose the correct answer from the options given below:
Which of the following is a common characteristic of a covalent compound?
1) high melting point
2) consists of molecules
3) always soluble in water
4) Conducts electricity when it is in the molten state
Choose the most appropriate answer from the following list of oxides which fit the description.
A covalent oxide of a metalloid.
How does graphite act as a lubricant?
Name the hardest natural substance known.
Fill in the following blank with suitable word:
The general formula CnH2n for cycloalkanes is the same as that of ...........
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of oxygen, O2, is formed from two oxygen atoms. What name is given to this type of bonding? (At. No. of oxygen = 8)
Draw the electron-dot structure of NH3 and state the type of bonding.
What is the difference between ionic compounds and covalent compounds?
Draw an electron dot diagram for the formation of the following. State the type of bonding present in them.
Hydroxyl ion
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Ethene
Explain the following briefly:
Cl2 is a non polar molecule, while HCl is a polar molecule.
(a) Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d) given below
X is likely to have a :
Acids dissolve in water to produce positively charged ions. Draw the structure of these positive ions.
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
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?
Write an Explanation.
Alkene
Explain covalent bond with example.
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc}\phantom{......}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{..}\\ \phantom{.....}|\phantom{....}|\phantom{....}|\\ \ce{H - C - C = C}\\\phantom{.....}|\phantom{.........}|\\ \phantom{.....}\ce{H}\phantom{........}\ce{H}\end{array}\] |
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 ______.
The correct structural formula of butanoic acid is
