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प्रश्न
Write the formula of its (X)
sulphate
nitrate
phosphate
carbonate
hydroxide.
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उत्तर
The formulae are
X(SO4)3
X(NO3)3
XPO4
X2(CO3)3
X(OH)3
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संबंधित प्रश्न
Match the atomic number 4, 8, 14, 15 and 19 with each of the following:
(a) A solid non-metal of valelncy 3.
(b) A gas of valency 2.
(c) A metal of valency 1.
(d) A non-metal of valency 4
Explain the following briefly:
Helium does not form He2 molecule
What type of bond is formed between two atoms, when the electronegative difference between them is zero?
State the following is a reduction reaction or oxidation reaction.
\[\ce{A^3+ + e- -> A^2+}\]
What is the contribution of the following in atomic structure?
Democritus
Give reason
`""_17^35"CI"` and `""_17^37"CI"` do not differ in their chemical reactions.
Complete the table give below.
| Element |
Atomic number |
Electron distribution | Valence electrons | Lewis dot structure |
| Lithium | 3 | 1s22s1 | ||
| Boron | 5 | 1s22s22p1 | ||
| Oxygen | 8 | 1s22s22p4 |
Spot the error/correct the wrong statement:
In the formation of compounds, the inner shell electrons of an atom involved in bonding.
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is chemically inert.
Elements A, B and C have atomic number 17, 19 and 10 respectively.
Write down the formula of the compound formed by two of the above elements.
