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Chemistry-

General

Easy

Question

Statement 1: $B F subscript 3 end subscript$ molecule is planar with an angle of 120 ͦC.
Statement 2: $B F subscript 3 end subscript$ has bond pair-lone pair electron ratio 1 : 3.

Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
Statement 1 is True, Statement 2 is False
Statement 1 is False, Statement 2 is True

The correct answer is: Statement 1 is False, Statement 2 is True

$B F subscript 3 end subscript$ is planar due to $s p to the power of 2 end exponent$ -hybridisation. Also in $B F subscript 3 end subscript$ , three bond pair on boron atom and 9 lone pairs of electrons on F atoms.

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Statement 1:LiCl is predominantly a covalent compound.
Statement 2:Electronegativity difference between Li and Cl is too small.

Statement 1:LiCl is predominantly a covalent compound.
Statement 2:Electronegativity difference between Li and Cl is too small.

Chemistry-General

Statement 1: $p$ -dimethoxy benzene is polar molecule.
Statement 2:The two methoxy groups at para positions are located as

Statement 1: $p$ -dimethoxy benzene is polar molecule.
Statement 2:The two methoxy groups at para positions are located as

Chemistry-General

Statement 1:The bond angle in $B F subscript 3 end subscript$ is smaller than that in $B F subscript 4 end subscript$ .
Statement 2: $B F subscript 3 end subscript$ has $s p to the power of 2 end exponent$ -hybridisation, whereas $B F subscript 4 end subscript superscript minus end superscript$ has $s p to the power of 3 end exponent$ -hybridisation.

Statement 1:The bond angle in $B F subscript 3 end subscript$ is smaller than that in $B F subscript 4 end subscript$ .
Statement 2: $B F subscript 3 end subscript$ has $s p to the power of 2 end exponent$ -hybridisation, whereas $B F subscript 4 end subscript superscript minus end superscript$ has $s p to the power of 3 end exponent$ -hybridisation.

Chemistry-General

parallel

Which of the following has maximum bond energy?

Which of the following has maximum bond energy?

Chemistry-General

The hybride orbital of the central atom in $A l F subscript 4 end subscript superscript minus end superscript$ is

The hybride orbital of the central atom in $A l F subscript 4 end subscript superscript minus end superscript$ is

Chemistry-General

Chelation can occur in

Chelation can occur in

Chemistry-General

parallel

The number of electron dots in Lewis structure indicates

The number of electron dots in Lewis structure indicates

Chemistry-General

The $B C l subscript 3 end subscript$ is a planar molecular whereas $N C l subscript 3 end subscript$ is pyramidal because

The $B C l subscript 3 end subscript$ is a planar molecular whereas $N C l subscript 3 end subscript$ is pyramidal because

Chemistry-General

Considering the state of hybridization of carbon atoms, find out the molecules among the following which is linear?

Considering the state of hybridization of carbon atoms, find out the molecules among the following which is linear?

Chemistry-General

parallel

Number of unpaired electrons in $open square brackets V open parentheses H subscript 2 end subscript O close parentheses subscript 6 end subscript close square brackets to the power of 3 plus end exponent$ is

Number of unpaired electrons in $open square brackets V open parentheses H subscript 2 end subscript O close parentheses subscript 6 end subscript close square brackets to the power of 3 plus end exponent$ is

Chemistry-General

Which property is not due to H-bonding?

Which property is not due to H-bonding?

Chemistry-General

If there are five electron pairs in outer shell, then structure and bond angle as predicted by Sidgwick-Powell theory is

If there are five electron pairs in outer shell, then structure and bond angle as predicted by Sidgwick-Powell theory is

Chemistry-General

parallel

The number of anti-bonding electron pairs in $O subscript 2 end subscript superscript 2 minus end superscript$ molecular ion on the basis of molecular orbital theory is (atomic number of O is 8)

The number of anti-bonding electron pairs in $O subscript 2 end subscript superscript 2 minus end superscript$ molecular ion on the basis of molecular orbital theory is (atomic number of O is 8)

Chemistry-General

Azide ion $left parenthesis N subscript 3 end subscript superscript minus end superscript right parenthesis$ exhibits an $N minus N$ bond order of 2 and may be represented by resonance structures I, II and III given below Select the correct statement

Azide ion $left parenthesis N subscript 3 end subscript superscript minus end superscript right parenthesis$ exhibits an $N minus N$ bond order of 2 and may be represented by resonance structures I, II and III given below Select the correct statement

Chemistry-General

Which has maximum number of lone-pairs of electrons on the central atom?

Which has maximum number of lone-pairs of electrons on the central atom?

Chemistry-General

parallel

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