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प्रश्न
State the following is a reduction reaction or oxidation reaction.
\[\ce{A^3+ + e- -> A^2+}\]
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उत्तर
Reduction Reaction.
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संबंधित प्रश्न
Five atoms are labelled from A to E.
| Atoms | Mass No. | Atomic No. |
| A | 40 | 20 |
| B | 19 | 9 |
| C | 7 | 3 |
| D | 16 | 8 |
| E | 14 | 7 |
(a) Which one of these atoms:
(i) contains 7 protons,
(ii) has an electronic configuration 2, 7?
(b) Write down the formula of the compound formed between C and D.
(c) predict which are: (i) metals, (ii) non-metals?
Give electron dot diagram of the following:
Magnesium chloride
A Compound 'X' consists of only molecules. Hence 'X' will have
State the following is a reduction reaction or oxidation reaction.
\[\ce{Fe^2+ - e- -> Fe^3+}\]
Name an element which does not contain neutron.
Name the following:
An element having valency 'zero'
Give a reason
Physical properties of isotopes are different.
State the type of bonding in the following molecules.
Calcium oxide
The valency of noble gases is ______.
How many electrons are required or released by each atom in water molecule to attain the nearest noble gas configuration?
