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प्रश्न
Select the correct answer to the statement given below:
A compound containing carbon, oxygen and calcium.
पर्याय
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
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उत्तर
Chalk
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संबंधित प्रश्न
Define: Elements
Correct the following statement:
CO and Co both represents cobalt.
Give two examples of the following.
Non-metals which are lustrous
Give two examples of the following.
Elements which are liquids
What is meant by H20 and 3H2O
State the number of atoms of C6H12O6
Name A substance used as an insulator.
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
Differentiate between the terms –
elements, compounds & mixtures.
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Complete the statement given below by filling in the blank with the correct word.
Element ______ has the symbol derived from its Latin name ‘Argentum’
Write the names of elements from the following symbol:
Br
Write the names of elements from the following symbol:
Ti
Write the names of elements from the following symbol:
Ir
Write the names of elements from the following symbol:
Pt
Represent with the help of a simple chart how matter is classified into pure or impure substances & further into elements, compounds & mixtures, with elements further segmented.
Select the correct answer from the choice given below to complete the sentence :
Dust in air is an example of _________ mixture.
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
Give the chemical formula for cane sugar.
