Question # 1

What conditon Should be met for the reversible reactio to achieve the state of equilibrium.

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The concentratio of all the reactants and the prodduct should become constant

all the reactants should be converted into the product

50% of the reactant shuld be converted into prodcuts.

One of the product should be removed from the reaction mixture.

Pure alkalis metals can be cut siply by knife but iron cannot bccause of alkali meals have

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Non metalic bonding

Strong metallic bonding

Weak metallic bonding

Moderate metqllic bonding

Whcih branches of chemistry deals with the changes that occur in atomic nuclei.

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Environmental chemistry

nuclear chemistry

Astrochemistry

Bio chemistry

Covalent Bond involves the

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Sharing of electrons

Repulsion of electrons

Acceptance of electrons

Donation of electrons

John Dalton put forward his atomic theory.

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1800

1803

1805

1903

Which molecule contains a single vovalent bond.

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CH4

C2H4

C2H2

O2

Which element is capable of forming all the three types of bonds, covalent coordinate covalent or ionic.

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Carbon

Silicon

Magnesium

Oxygen

A bond formed by the mutual sharing an electron pair is called.

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Ionic bond

Metallic bond

Covalent bond

Coordinate covalent bond

Number of electronsin nitrogen molecule is.

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2

4

6

8

Whic period of the moden periodic table is condidered as incommplete period.

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5th

4th

7th

6th

Which is used to manufacture soap?

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NH4OH

Ca(OH)2

NaOH

Mg(OH)2

N-shell contains number of subshells.

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1

3

4

2

How many atom of carbon are present in one molecule of glucose.

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11

22

12

6

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