Advertisements
Advertisements
Question
State the following is a reduction reaction or oxidation reaction.
\[\ce{A^3+ + e- -> A^2+}\]
Solution
Reduction Reaction.
APPEARS IN
RELATED QUESTIONS
Element X is a metal with a valency 2; Y is a non-metal with a valency 3.
(a) Write an equation to show how Y forms as ion
(b) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms a cation?
Name an element which does not contain neutron.
Name the following:
The shell closest to the nucleus of an atom
Draw orbit structure diagram of sodium chloride (NaCl).
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of oxidizing agent.
An element M burns in oxygen to form an ionic compound MO. Write the formula of the compounds formed if this element is made to continue with chlorine and sulfur separately.
Complete the table give below.
Element |
Atomic number |
Electron distribution | Valence electrons | Lewis dot structure |
Lithium | 3 | 1s22s1 | ||
Boron | 5 | 1s22s22p1 | ||
Oxygen | 8 | 1s22s22p4 |
Match the following:
1. | Atomic bond | a. | Oxygen and hydrogen |
2. | Atoms with different electronegativities | b. | acceptor bond |
3. | An atom that accepts electron pair | c. | covalent bond |
4. | Rusting of iron | d. | donor atom |
5. | An atom that provides electron pair | e. | oxidation |
f. | ionic bond |
How many electrons are required or released by each atom in carbon tetrachloride to attain the nearest noble gas configuration?