Chemistry-
General
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Question

Many bond angles can be explained by either electronegativity or size arguments. Molecules with larger difference in electronegativity values between central and outer atoms have smaller bond ang les. As the size of outer atom increases, the angle increases. The size of central atom can also be used to determine the bond angles in the series.

Consider the following hydrides and arrange them in increasing order of bond ang les:
I) N H subscript 3 end subscript
II) P H subscript 3 end subscript
III) A s H subscript 3 end subscript
IV) S b H subscript 3 end subscript

  1. I less than I I less than I I I less than I V    
  2. I V less than I I I less than I I less than I    
  3. I less than I I I less than I I less than I V    
  4. I V less than I I less than I I I less than I    

The correct answer is: I V less than I I I less than I I less than I

Related Questions to study

General
chemistry-

Many bond angles can be explained by either electronegativity or size arguments. Molecules with larger difference in electronegativity values between central and outer atoms have smaller bond ang les. As the size of outer atom increases, the angle increases. The size of central atom can also be used to determine the bond angles in the series. Consider the following molecules:
I) H subscript 2 end subscript O
II) H subscript 2 end subscript text end text S
III) H subscript 2 end subscript S e
IV) H subscript 2 end subscript T e

Arrange these molecules in increasing order of bond angle:

Many bond angles can be explained by either electronegativity or size arguments. Molecules with larger difference in electronegativity values between central and outer atoms have smaller bond ang les. As the size of outer atom increases, the angle increases. The size of central atom can also be used to determine the bond angles in the series. Consider the following molecules:
I) H subscript 2 end subscript O
II) H subscript 2 end subscript text end text S
III) H subscript 2 end subscript S e
IV) H subscript 2 end subscript T e

Arrange these molecules in increasing order of bond angle:

chemistry-General
General
chemistry-

A) 
B) 
C) 
In the thiocyanate ion, S C N to the power of minus end exponent three resonance structures are consistent with the electron -dot method Structure A has only one negative formal charge on the nitrogen atom, the most electro negative atom in the ion. Structure B has a single negative charge on the S, which is less electronegative than N. Structure C has charges of -2 on N and +1 on S, consistent with the relative electronegativities of the atoms but with a larger charge and greater charge separation than the first.
HNCs is isostructural with:

A) 
B) 
C) 
In the thiocyanate ion, S C N to the power of minus end exponent three resonance structures are consistent with the electron -dot method Structure A has only one negative formal charge on the nitrogen atom, the most electro negative atom in the ion. Structure B has a single negative charge on the S, which is less electronegative than N. Structure C has charges of -2 on N and +1 on S, consistent with the relative electronegativities of the atoms but with a larger charge and greater charge separation than the first.
HNCs is isostructural with:

chemistry-General
General
chemistry-

A) 
B) 
C) 
In the thiocyanate ion, S C N to the power of minus end exponent three resonance structures are consistent with the electron -dot method Structure A has only one negative formal charge on the nitrogen atom, the most electro negative atom in the ion. Structure B has a single negative charge on the S, which is less electronegative than N. Structure C has charges of -2 on N and +1 on S, consistent with the relative electronegativities of the atoms but with a larger charge and greater charge separation than the first. Predict the hybridization of atom which is bonded with H in structure HNCS:

A) 
B) 
C) 
In the thiocyanate ion, S C N to the power of minus end exponent three resonance structures are consistent with the electron -dot method Structure A has only one negative formal charge on the nitrogen atom, the most electro negative atom in the ion. Structure B has a single negative charge on the S, which is less electronegative than N. Structure C has charges of -2 on N and +1 on S, consistent with the relative electronegativities of the atoms but with a larger charge and greater charge separation than the first. Predict the hybridization of atom which is bonded with H in structure HNCS:

chemistry-General
parallel
General
chemistry-

Number of pi bonds sigma bonds in the following structure is:

Number of pi bonds sigma bonds in the following structure is:

chemistry-General
General
chemistry-

Which of the following reaction staking place in the blastfurnace during extraction of ironsendo thermic?

Which of the following reaction staking place in the blastfurnace during extraction of ironsendo thermic?

chemistry-General
General
chemistry-

Which method of purification is represented by thee quations :

Which method of purification is represented by thee quations :

chemistry-General
parallel
General
chemistry-

For the compounds C H subscript 3 end subscript C l comma C H subscript 3 end subscript B r comma C H subscript 3 end subscript I text  and  end text C H subscript 3 end subscript F text  , end text text end textthe correcorder of increasing C- halogebond lengtis:

For the compounds C H subscript 3 end subscript C l comma C H subscript 3 end subscript B r comma C H subscript 3 end subscript I text  and  end text C H subscript 3 end subscript F text  , end text text end textthe correcorder of increasing C- halogebond lengtis:

chemistry-General
General
chemistry-

In which of the followinpairof molecules/ions, both the species are not likelto exist?

In which of the followinpairof molecules/ions, both the species are not likelto exist?

chemistry-General
General
chemistry-

The hybridization of orbitals of Na to min N O subscript 3 end subscript superscript minus end superscript N O subscript 2 end subscript superscript plus end superscript commaand N H subscript 4 end subscript superscript plus end superscript are respectively

The hybridization of orbitals of Na to min N O subscript 3 end subscript superscript minus end superscript N O subscript 2 end subscript superscript plus end superscript commaand N H subscript 4 end subscript superscript plus end superscript are respectively

chemistry-General
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General
General

Rational numbers
Is sum of 12.5 and 36.25 is a rational numbers?

Rational numbers
Is sum of 12.5 and 36.25 is a rational numbers?

GeneralGeneral
General
General

ml to Litre
How many ml in 2 litres ?

ml to Litre
How many ml in 2 litres ?

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Mean
The weights of 6 persons are 60, 49, 55, 65, 71, 66Kgs
Find the Mean weight

Mean
The weights of 6 persons are 60, 49, 55, 65, 71, 66Kgs
Find the Mean weight

GeneralGeneral
parallel
General
General

congruent
In the figure, stack A P with rightwards arrow on top and Error converting from MathML to accessible text. are parallel and equal to each of the by which rule .
incrementAOP and incrementBOQ are congruent.

congruent
In the figure, stack A P with rightwards arrow on top and Error converting from MathML to accessible text. are parallel and equal to each of the by which rule .
incrementAOP and incrementBOQ are congruent.

GeneralGeneral
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General

Median
The marks of taied by a student in 5questions of a question paper are 8, 3, 10, 4, and 7
Find the Median

Median
The marks of taied by a student in 5questions of a question paper are 8, 3, 10, 4, and 7
Find the Median

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Integer
A sub measure was situated 600 feet below the sea level. If it now reais by 200 feet, What is its new position.

Integer
A sub measure was situated 600 feet below the sea level. If it now reais by 200 feet, What is its new position.

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