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Give the names of common ions.

Important Questions on Chemical Reactions

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Which one of the following is cation

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Science>Chemistry>Chemical Reactions>Using Word Equations

A substance on treatment with dilute

H_{2} {SO}_{4}

liberates a colourless gas which produces (i) turbidity with baryta solution and (ii) turns acidified dichromate solution green. The reaction indicates the presence of

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Science>Chemistry>Chemical Reactions>Using Word Equations

A positively charged body has

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Science>Chemistry>Chemical Reactions>Using Word Equations

Our teeth enamel is made up of _____.

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Science>Chemistry>Chemical Reactions>Using Word Equations

The number of protons in one atom of an element

X

8

. What will be the number of electrons in its ion

X^{- 2}

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Science>Chemistry>Chemical Reactions>Using Word Equations

The following is the correct decreasing order of the ionic radii-

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Science>Chemistry>Chemical Reactions>Using Word Equations

Give one phrase for the following statement:

Process of formation of ions from molecules which are not in the ionic state.

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Science>Chemistry>Chemical Reactions>Using Word Equations

Give the names and formulae of two pentatomic and two tetratomic anions.

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Science>Chemistry>Chemical Reactions>Using Word Equations

Write the cations and anions present (if any) in

NaCl

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Science>Chemistry>Chemical Reactions>Using Word Equations

{}_{19}^{39}K

changes to an ion of the nearest noble gas. What kind of change occurs when it forms a K ion?

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Science>Chemistry>Chemical Reactions>Using Word Equations

One electron is present in the outermost shell of the atom of an element X. What would be the nature and value of charge on the ion formed if this electron is removed from the outermost shell?

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Science>Chemistry>Chemical Reactions>Using Word Equations

Identify the cation and anion present in the compound potassium dichromate.

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Science>Chemistry>Chemical Reactions>Using Word Equations

An electrically charged particle formed from an element which may have a positive or negative charge, is called:

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Science>Chemistry>Chemical Reactions>Using Word Equations

A group of atoms carrying a fixed charge on them is called _____ ions. (triatomic/ polyatomic)

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Science>Chemistry>Chemical Reactions>Using Word Equations

A Positively charged ion is also called?