Biology/Biology MCQ Question - Chemical Bonding Sample Test,Sample questions

Question:
The reaction of carboxylic acids with alcohols in presence of cone. H2SO4 is called

1.esterification

2.neutralization

3.hydrolysis

4.saponification


Question:
? - amino succinic acid is also called

1.lysine

2.aspartic acid

3.alanine

4.glutamic acid


Question:
According to VESPR Model the geometry of molecule having 5 bond pair in outer most shell will be

1.Triangular

2.Square planner

3.Trigonal bipyramidal

4.Octahedral


Question:
Amino acids present in cheese

1.lysine

2.alanine

3.tyrosine

4.proline


Question:
An acid with unpleasant smell

1.formic acid

2.acetic acid

3.propionic acid

4.butyric acid


Question:
Angle in water molecule is

1.104.9?

2.104.5?

3.109.5?

4.120?


Question:
Bond order for N2 molecule is

1.2

2.1

3.3

4.4


Question:
Bond will beionic when E.N difference of bonded atom is

1.Equal to 1.7

2.Greater than 1.7

3.Less than 1.7

4.No specificity exists


Question:
By combining n atmic orbitals no. of hybrid orbitals will be

1.2n

2.n

3.3n

4.impossible to predict


Question:
Carboxylic acid on reduction with HI / phosphorous yields

1.alkane

2.alcohols

3.aldehydes

4.ketones


Question:
Elements having high I.P values are

1.Metals

2.Non metals

3.Liquids

4.Solids


Question:
Elements of group IA IIA are

1.Electronegative

2.Electropositive

3.Neutral

4.IA is electropositive while IIA is electronegative


Question:
Energy released or absorbed when electrons are added in atom is

1.Ionization potential

2.Electronegativity

3.Electron affinity

4.Activation energy


Question:
Essential amino acids are

1.5

2.10

3.15

4.20


Question:
Geometry of molecule will be pyramidal if the outer post shell of the central atom has

1.3 bond pair one lone pair

2.2 bond pair 2 lone pair

3.1 bond pair 3 lone pair

4.3 lone pair 1 bond pair


Question:
Geometry of simple molecule having sp3 hybrid orbital is

1.Triangular

2.Tetrahedral

3.Square planner

4.Linear


Question:
Greater shielding effect corresponds to ionization energy value

1.Greater

2.Lesser

3.Remain same

4.No effect


Question:
In a period electronegativity from left to right

1.Increases

2.Decreases

3.Remain constant

4.Variable trend


Question:
Ionic bond is produced after complete transfer of

1.Nucleus

2.Neutrons

3.Electrons

4.Protons


Question:
Major cause of SO2 on global scale is

1.volcanoes

2.electric sparks

3.combustion

4.all


Question:
Molecular orbital which have higher energy than atomic orbitals is called

1.Bonding molecular orbital

2.Antibonding molecular orbital

3.Hybrid orbital

4.Super atomic orbital


Question:
Mostly ionic compound are produced in between elements of

1.IA and VIA

2.IA IIA and VIIA

3.IB and VIIB

4.IA and IB


Question:
on sp3 hybridization

1.All p-orbitals are involved

2.One s and 3 p-orbitals are involved

3.one p-orbital is involved

4.four p-orbitals are involved


Question:
Orbitals of same energy produced after mixing of orbitals of different energy are called

1.Degenerate orbitals

2.Generate orbitals

3.Hybrid orbitals

4.Zeeman orbitals


Question:
Pi bonds are produced by overlapping of

1.Un-hybrid orbitals

2.Hybrid orbitals

3.Hybrid and un hybrid orbitals

4.atomic orbital and hybrid orbital


Question:
Picric acid is

1.monocarboxylc acid

2.dicarboxylic acid

3.aromatic carboxylic acid

4.none of these


Question:
Product of charge and distance is called

1.Pressure

2.Bond length

3.Work

4.Dipole moment


Question:
Requirement of macronutrient per acre of the land is

1.5 to 200 kg

2.20-200 kg

3.200-400 kg

4.30-400 kg


Question:
Residence time of methane in the atmosphere is

1.3 - 7 days

2.2 -3 days

3.3 - 7 years

4.2 - 3 years


Question:
Sharing of 1 electron pair by one specie forms

1.Single covalent bond

2.Hydrogen bond

3.Double covalent bond

4.Coordinate covalent bond


Question:
The aliphatic monocarboxylic acids are obtained by the hydrolysis of

1.proteins and oild

2.fats and proteins

3.fats and oils

4.all above


Question:
The basic hydrolysis of ethyl acetate produces

1.ethanol

2.acetic acid

3.ethanol and acetic acid

4.ethanol and sodium acetate


Question:
The complete reduction carboxylic acid results in the formation of

1.Alkyne

2.Alkene

3.Alkane

4.Alcohol


Question:
The formula of palmitic acid

1.C15H31COOH

2.C13H27COOH

3.C17H33COOH

4.C17H35COOH


Question:
The geometry of ammonia is

1.Tetrahedral

2.Square planner

3.Trigonal bipyramidal

4.Trigonal Pyramidal


Question:
The Lewis acids are

1.Electron deficient

2.Electron rich

3.Octet is complete

4.No such acids exist


Question:
The organic acid that can be made from ethanol is

1.Acetic acid

2.Formic acid

3.Butanoic acid

4.Citric acid


Question:
Three elements needed for the healthy growth of plants are

1.N P K

2.N K C

3.N S P

4.N Ca P


Question:
Unit of dipole moment is

1.Debye

2.Poise

3.Pascal

4.Newton


Question:
Unpaired electron in a molecule gives _________ character.

1.Ferromagnetic

2.Paramagnetic

3.Diamagnetism

4.Both a & b


Question:
Which of the following has orange flavour

1.isobutyl formate

2.octyl acetate

3.ethyl butyrate

4.amyl lactate


Question:
Which of the following is a macronutrient?

1.boron

2.iron

3.copper

4.carbon


Question:
Which of the following is an unsaturated carboxylic acid

1.malonic acid

2.oxalic acid

3.succinic acid

4.maleic acid


Question:
Which of the following is not a fatty acid?

1.Propanoic acid

2.Acetic acid

3.Phthalic acid

4.Butanoic acid


Question:
Which of the following is not a heavy industry?

1.iron

2.fertilizer

3.paper

4.none


Question:
Which of the following is not a secondary pollutant

1.ozone

2.carbonic acid

3.sulphuric acid

4.carbon dioxide


Question:
Which of the following is not an amino acids

1.glumatic acid

2.lactic acid

3.aspartic acids

4.glycine


Question:
Which of the following is not an ester

1.amyl acetate

2.sodium butyrate

3.isobutyle formate

4.octyl acetate


Question:
Which of the following solutions of H2SO4 is more concentrated?

1.1 Molar solution

2.1 molal solution

3.1 normal solution

4.all have same concentration


Question:
Which one of the following has polar covalent bond?

1.HF

2.CH4

3.H2

4.N2


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