Advertisements
Advertisements
Question
How many atoms are present in a PO43− ion?
Advertisements
Solution
In a PO43− ion, five atoms are present; one of phosphorus and four of oxygen.
RELATED QUESTIONS
Name the following radicals :
OH
Write the names of `"H"_2"S"` compounds :
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.
What is the name of a particle which contains 10 electrons, 11 protons and 12 neutrons ?
An element X has a valency of 2. Write the simplest formula for bromide of the element.
A particle X has 17 protons, 18 neutrons and 18 electrons. This particle is most likely to be :
Give example.
Basic radicals
Give example.
Composite radicals
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Calcium silicate
Differentiate between the following with suitable examples- A basic radical and an acid radical
