Which of the following statement is not ...

Which of the following statement is not true

All members of the kingodom animalia are multicellular

Nature of coelom is used as one of the basis of animal classification

there is not need of classification now as over a million species of animals have been described till now

the arrangment of cells in the body is one of the classifying feature fo the animals

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The correct Answer is:

there is not need of classification now as over a million species of animals have been described till now

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Which of the following statements is not true ?

An acidified solution of `K_(2) Cr_(2) O_(7)` liberated `I_(2)` from KI

In acidic medium, dichromate ion is present

Neutral `KMnO_(4)` oxidises KI to `I_(2)`

Potassium dichromate is an oxidising agent

Bacteria present in the mouth produce acids by degradation of sugar and food particles remaining in the mouth.

When pH of the mouth is higher than 5.5, then tooth decay starts.

Tooth enamel made of calcium phosphate is the hardest substance in the body.

Using toothpaste, which are generally basic, helps neutralise the excess acid and prevent tooth decay.

`HOCl` is a stronger acid than `HOBr`

`HF` is a stronger acid than `HCl`

Among halide ions, iodine is the most powerful reducing agent.

Fluorine is the only halogen that does not show a variable oxidation state