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प्रश्न
Name the black substance of pencil. Will the current flow through the electrical circuit when we use the sharpened ends of the pencil to complete the circuit?
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उत्तर
The black substance inside a pencil is graphite.
Yes, current will flow through the electrical circuit if we use the sharpened ends of the pencil to complete the circuit, as graphite is a good conductor of electricity.
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संबंधित प्रश्न
State the type of bonding in the following molecule.
Water
An element L consists of molecules.
What type of bonding is present in the particles that make up L?
What type of bonds are present in CO2 molecule? Draw their electron-dot structures.
Which inert gas electron configuration do the Cl atoms in Cl2 molecule resemble? What is this electron configuration?
Friedrich Wohler converted an inorganic compound into an organic compound in the laboratory.
Write the name and formula of organic compound formed.
Give the formula of the compound that would be formed by the combination of the following pair of elements:
K and H
Draw the electron-dot structure of N2 and state the type of bonding.
One of the following contains a double bond as well as single bonds. This is:
(a) CO2
(b) O2
(c) C2H4
(d) C2H2
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 example.
Alkane
Explain the following term with example.
Homopolymer
Explain the following:
Covalent compounds are generally gases or liquids or soft solids.
Draw the electron dot diagram and structure of nitrogen molecule.
Draw the electron dot diagram and structure of magnesium chloride.
State the type of bond formed when the combining atom has zero E.N. difference.
Write an Explanation.
Alkane
Discuss in brief about the properties of coordinate covalent compounds.
Cation is formed when ______.
What is a covalent bond?
Non-polar covalent compounds are ______ conductors of heat and electricity.
