Advertisements
Advertisements
प्रश्न
State the valency of the following metallic element and write symbol with the valency
Zinc
उत्तर
Metals have positive valency 1, 2 or 3,
| Element | Symbol | Valency |
| Zinc | \[\ce{Zn}\] | \[\ce{Zn^2+}\] |
APPEARS IN
संबंधित प्रश्न
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Magnetic separation
Name the elements represented by the following symbols :
Hg, Pb, Au, Ag, Sn
Give the symbol and the number of atoms of the following elements present in water.
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
Match the formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
State the type of element for the following:
Arsenic
Give the formula of the following gas:
Nitrogen dioxide
Name the following:
An acid whose formula is ‘H2CO3’.
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Silver
write symbol with the variable valency
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).
Bicarbonate
