Recent questions in Chemistry

In which of the following ionization processess, the bond order has increased and the magnetic behaviour has changed?

asked Jun 13, 2018 by meena.p

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Pairs of outer shell electrons not used in bonding are called as

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1 answer

Bonds formed by sharing four electrons are

asked Jun 12, 2018 by meena.p

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Polythene is solid at

asked Jun 12, 2018 by meena.p

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Which among the following formation is not an example of Covalent bond?

asked Jun 12, 2018 by meena.p

2 answers

Polar refers to _____.

asked Jun 12, 2018 by meena.p

1 answer

carbon tetrachloride has no net dipole moment because of

asked Jun 12, 2018 by meena.p

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The three dots in the Lewis dot diagram for boron indicate that it

asked Jun 12, 2018 by meena.p

1 answer

How many bonding and non-bonding electron pairs are found in the $BF_3$ molecule?

asked Jun 12, 2018 by meena.p

1 answer

Repulsion in electron pairs occurs until the

asked Jun 12, 2018 by meena.p

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A non-polar molecule of Bromine at room temperature is found in state

asked Jun 11, 2018 by meena.p

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When a single atom provides both electrons which are needed for completion of covalent bond lead to

asked Jun 11, 2018 by meena.p

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The Van der Waal's forces are directly proportional to the

asked Jun 11, 2018 by meena.p

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In ethene $C_2H_4$, the C-C form a

asked Jun 11, 2018 by meena.p

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Which of the above bonds explains water's abnormally high boiling point?

asked Jun 11, 2018 by meena.p

1 answer

Lone pairs in $CO_2$ are

asked Jun 11, 2018 by meena.p

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Which one of the following elements has valence electrons in the n = 3 shell?

asked Jun 11, 2018 by meena.p

1 answer

Which force is most important in allowing ammonia, $NH_3$, to dissolve in water?

asked Jun 11, 2018 by meena.p

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An atom of element A has three electrons in its outer shell and B has six electrons in its outermost shell. The formula of the compound formed between these two will be :

asked Jun 11, 2018 by meena.p

1 answer

The bond order of $N_2^{-}$ anion is :

asked Jun 11, 2018 by meena.p

1 answer

Which of the following is the name given to the pairs of valence electrons that do not participate in bonding in diatomic oxygen molecules?

asked Jun 11, 2018 by meena.p

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Atoms undergo bonding in order to ?

asked Jun 11, 2018 by meena.p

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The values of electronegativity of atoms A and B are 1.20 and 4.0 respectively. The percentage of ionic character of A ? B bond is

asked Jun 11, 2018 by meena.p

1 answer

The maximum number of $90^{\circ}$ angles between bond pair of electrons is observed in

asked Jun 11, 2018 by meena.p

1 answer

Shape of the molecule is decided by

asked Jun 11, 2018 by meena.p

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Which of the above bonds explains water's abnormally high boiling point?

asked Jun 8, 2018 by meena.p

1 answer

The energy required to break one mole of $Cl-Cl$ bonds in $Cl_2$ is $242\;kJ\; mol^{-1}$. the longest wavelength of light capable of breaking a single $Cl-Cl$ bonds is $(c=3 \times 10^4\;ms^{-1}\;and\;N_A=6.02\times 10^{23}mol^{-1})$

asked Jun 8, 2018 by meena.p

1 answer

How many valence electrons are transferred from the calcium atom to iodine in the formation of the compound calcium iodide?

asked Jun 8, 2018 by meena.p

1 answer

A molecule with a single covalent bond is ____.

asked Jun 8, 2018 by meena.p

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Once formed, how are coordinate covalent bonds different from other covalent bonds?

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Why is hydrogen bonding only possible with hydrogen?

asked Jun 8, 2018 by meena.p

1 answer

Atoms undergo bonding in order to ?

asked Jun 7, 2018 by meena.p

1 answer

During bonding, why do main group elements tend to lose or gain electrons as per the octet rule?

asked Jun 7, 2018 by meena.p

1 answer

Lattice energy is the measure of

asked Jun 7, 2018 by meena.p

1 answer

The maximum number of $90^{\circ}$ angles between bond pair of electrons is observed in

asked Jun 7, 2018 by meena.p

1 answer

Water has high heat of vaporisation due to

asked Jun 7, 2018 by meena.p

1 answer

In the following which bond will be responsible for maximun value of hydrogen bond

asked Jun 7, 2018 by meena.p

1 answer

Using MO theory predict which of the following species has the shortest bond length ?

asked Jun 7, 2018 by meena.p

1 answer

Which of the following compounds has the smallest bond angle in its molecule ?

asked Jun 7, 2018 by meena.p

1 answer

Higher the bond order greater is

asked Jun 7, 2018 by meena.p

1 answer

An atom differs from its ion in which among the following ?

asked Jun 7, 2018 by meena.p

1 answer

An atom differs from its ion in which among the following ?

asked Jun 7, 2018 by meena.p

0 answers

An atom differs from its ion in which among the following ?

asked Jun 7, 2018 by meena.p

0 answers

Which of the following statements about sodium chloride is incorrect?

asked Jun 7, 2018 by meena.p

1 answer

The bonds present in $N_2O_5$ are ______

asked Jun 6, 2018 by meena.p

1 answer

Which among the following is both a molecule and a compound?

asked Jun 6, 2018 by meena.p

1 answer

State whether the given statement is true or false “Ionic bonds are non-directional”

asked Jun 6, 2018 by meena.p

1 answer

Ethyl alcohol and methoxy methane are isomeric but ethyl alcohol has higher boiling point because

asked Jun 6, 2018 by meena.p

1 answer

Which of the above bonds explains water's abnormally high boiling point?

asked Jun 6, 2018 by meena.p

1 answer

The bond between two identical non-metal atoms has a pair of electrons:

asked Jun 6, 2018 by meena.p

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