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प्रश्न
State whether the statement given below is true or false. If false write the correct statement.
Lead pencils contain lead.
पर्याय
True
False
उत्तर
False.
Correct statement: Lead pencils contain graphite.
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संबंधित प्रश्न
Write any three differences between metals and non-metals with respect to their physical properties.
Explain the meaning of malleable.
Choose the correct answer from the options given below :
The two main metals in Bronze are:
(A) Copper and zinc
(B) Copper and lead
(C) Copper and nickel
(D) Copper and tin
Why are metals used for making cooking vessels?
Name the most abundant non-metal in the earth's crust.
Write the name and formulae of a non-metal hydride.
State one use of Sulphur.
Name a non-metal having lustre (shining surface).
Name a metal that is most malleable
Name a metal that is the best conductor of electricity
Name the metals present in the following alloys
Brass
Statements given below are incorrect. Write the correct statements :
Soda water is prepared by dissolving washing soda in water.
What do you understand by the term metal?
What are metalloids: Give examples.
`Mg +H_2SO_4 → —+ — `
How are metals like sodium, potassium, and calcium obtained? Give equations.
Complete the statement given below, by filling in the blank with the correct word:
The ability of a metal to produce a reasonant sound ______.
Give reason for the following:
Metals form cations while non-metals form anions.
Give reason for the following:
Rusting reduces the structural strength of iron.
Non – metals are ______.
