Question # 1

The formaton ionic bond between two ions is due to.

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Hydrogen bonding

Metalic force

Electrostatic forces

All of the above

Which molecule contains a single vovalent bond.

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CH4

C2H4

C2H2

O2

The atomic radii of the elemtns in periodic table.

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Increase from left to right in a period

Do not chage from left to right in a period

Increase from top to bottom in a group

Decrease from top to bottom in a group

Atoms react with each other because.

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they are attracted towards each other

They are short of electrons

They want to disperse

They want attain stability

Which are good conductor of heat and electricity

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Metals

Non metals

Metalloids

All of these

How many groups are present in the modern periodic table.

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8

10

15

18

The horizontal lines present in the priodic table are called.

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Groups

Periods

Both a and b

None of these

Which of the following contains oxalic acid

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Orange

Sour Milk

Tomato

Tamarind

Which of the following statement is not correct about isotopes.

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they have same atomic number

They have same number of protons

They have same physical properties

They have same chemical propeties

Whcih is true about the equilibrium state?

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The forard reaction stops

Both forward and reverse reactions stop

Both foward and reverse reactions continue at the same rate

The reverse reaction stops

What does keep the particles present in the nucleus intact.

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Particles are held together by dipolar force

Particles are held together by wee nuclear force

Particles are held together by strong nuclear force

Particles are held together by electrostatic force

Which one of the followign halogns has highest electronegativity

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Iodine

Fluorine

Chlorine

Bromine

Number of electrons that an be accomodated in f - subshell

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6

10

2

14

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