Advertisements
Advertisements
प्रश्न
State if the following element or radical is divalent?
Lithium
Advertisements
उत्तर
Lithium element or radical not divalent.
APPEARS IN
संबंधित प्रश्न
A liquid compound X of molecular mass 18 u can be obtained from a number of natural sources. All the animals and plants need liquid X for their survival. When an electric current is passed through 200 grams of pure liquid X under suitable conditions, then 178 grams of gas Y and 22 grams of gas Z are produced. Gas Y is produced at the positive electrode whereas gas Z is obtained at the negative electrode. Moreover, gas Y supports combustion whereas gas Z burns itself causing explosions.
- Name (i) liquid X (ii) gas Y, and (iii) gas Z.
- What is the ratio of the mass of element Z to the mass of element Y in the liquid X ?
- Which law of chemical combination is illustrated by this example ?
- Name two sources of liquid X.
- State an important use of Y in our life.
Fill in the following blank with suitable word :
The particle which is formed by the gain of electrons by an atom is called ..............
An element X has a valency of 2. Write the simplest formula for oxide of the element.
Give example.
Bivalent acidic radicals
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Chromium sulphate
Choose the correct answer from the options given below.
The number of carbon atoms in a hydrogen carbonate radical is
Select the correct answer to the statement given below:
An elementary particle of matter – of a group of atoms of different elements behaving as a single unit with charge on the group.
State if the following element or radical is divalent?
Ammonium
State if the following element or radical is divalent?
Sulphite
State if the following element or radical is divalent?
Nitride
