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प्रश्न
Two elements X and Y have valencies of 5 and 3, and 3 and 2, respectively. The elements X and Y are most likely to be respectively :
पर्याय
copper and sulphur
sulphur and iron
phosphorus and nitrogen
nitrogen and iron
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उत्तर
nitrogen and iron
Elements X and Y, most likely, are nitrogen and iron.
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संबंधित प्रश्न
What do the following symbol stand for?
2H
Explain the terms 'valency' and 'variable valency'.
Give the symbol of the following element:
Neon
Give the symbol of the following element:
Xenon
Give the symbol of the following element:
Silicon
Give the symbol of the following element:
Iodine
State the type of element for the following:
Aluminium
Give three reasons why – carbon dioxide is considered a compound, while carbon – an element.
Give a reason – Magnesium [2, 8, 2] has valency 2+.
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Nitride
