Advertisements
Advertisements
Question
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Advertisements
Solution
A radical is an atom or group of an atom of the same or different elements that behave in the manner of positive or negative ions.
(a) NO3 – nitrate
(b) OH – hydroxide
(c) SO4 – sulphate
(d) CO3 – carbonate
RELATED QUESTIONS
Tick the most appropriate answer.
The constituents of a mixture are present in
- a fixed ratio
- a variable ratio,
- the ratio of 2: 1
- none of these
Correct the following statement:
CO and Co both represents cobalt.
Give two examples of the following.
Metals which are soft
Select the correct answer from A, B, C, D & E for the statement given below :
A noble gas.
Classify the following as elements and compounds.
Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium
Matter is its simplest form is called ______.
Classify the substances given in Fig. 2.2 into elements and compounds

What is the Latin name of Sodium?
Higher-Order Thinking questions:
Why is hydrogen considered an element?
Elements contain the ______of the same kind.
