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प्रश्न
A student wants to have 3.011 × 1023 atoms each of magnesium and carbon elements. For this purpose, he will have to weigh :
विकल्प
24 g of magnesium and 6 g of carbon
12 g of carbon and 24 g of magnesium
20 g of magnesium and 10 g of carbon
12 g of magnesium and 6 g of carbon
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उत्तर
12g of magnesium and 6g of carbon
The student will have to weigh 12 g of Magnesium and 6 g of Carbon.
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संबंधित प्रश्न
The scientist who proposed the first letter (or first letter and another letter) of the Latin or English name of
an element as its symbol, was :
What is a symbol? What information does it convey?
Write the full form of IUPAC. Name the elements represented by the following symbols:
Au, Pb, Sn, Hg
Give the symbol of the following element:
Sulphite
Write the radical of the following valency:
Chlorine [Chloride]
Write the radical of the following valency:
Nitrate
Give the formula of the following gas:
Nitric oxide
State the valency of the following metallic element and write symbol with the valency
Aluminium
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
write symbol with the variable valency
Name three metals whose symbols are derived: from their Latin names.
