Opening the cover of a book can unlock a world of adventures, imagination and rich language for your child. When you make reading together a joyful habit, you help them build strong vocabulary, develop speech and create meaningful time with you. Just 10-15 minutes of reading each day is enough to spark interest and curiosity. Here’s how you can help your child fall for books—step by step. 1. Begin from day one Even as a newborn, your baby is absorbing the sounds, rhythms and meaning of language. When you read aloud, point out pictures, talk about sounds, change your tone of voice, make it fun. They’re not yet reading words—but they are learning to love the experience. The earlier reading becomes part of your interaction, the stronger the foundation. 2. Show by example Children are great imitators. If they see you enjoying books, turning pages, getting lost in a story, they’ll begin to understand reading is fun—not just a school task. Making visits to the l...
This is
a type analysis which involves the identification of the ions ( cation and
anion) in a given inorganic substance. Thus, Qualitative analysis deals with
the identification of the compound. To effectively identify the ions, it is necessary
to be able to observe the presence of any chemical reaction which is normally
recognized by
·
Colour change
·
Evolution of gas
·
Precipitation
Colour Change:
colour change is associated with transition metal ions. The major cause of the
colour in transition metal ions is electronic transition within the d-block
level. The colour of light which show, is the colour of light which is reflected
by the ion. This change of transition metal ions is common when they form a bond
with water or ammonia. It is important to note that zinc does not form coloured
ion, this is because zinc has completely filled the d orbital, but zinc is yellow when
hot and white when cold.
Evolution
of gas: This is identified by the formation of bubbles
in the solution or effervescence. When this occurs, notice the colour and odour
of the gas. Test the gas with damp litmus blue and red litmus papers, before
carrying out any specific tests on it.
Precipitation: this is the name given to a type
of reaction in which insoluble solid is formed from solution. The insoluble
particles formed are called precipitates. In qualitative analysis, it is
necessary to note the colour and nature of the precipitate because these serve
as a guide towards the identification of ions presence in the solution, semi-solid
precipitates are called gelatinous precipitates
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