Chemistry Mcqs – (Science) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests

Chemistry Mcqs – (Science) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests

Chemistry Mcqs - (Science) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests
Chemistry Mcqs

Chemistry Mcqs “. Tab this page to check “Latest Chemistry MCQs” for the preparation of competitive mcqs, FPSC mcqs, PPSC mcqs, SPSC mcqs, KPPSC mcqs, AJKPSC mcqs, BPSC mcqs, NTS mcqs, PTS mcqs, OTS mcqs, Atomic Energy mcqs, Pak Army mcqs, Pak Navy mcqs, CTS mcqs, ETEA mcqs and others. The most occurred mcqs of Chemistry in past papers. Past papers of Chemistry mcqs. Past papers of Chemistry MCQs. Chemistry Mcqs are the necessary part of any competitive / job related exams. The Chemistry mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Chemistry mcqs. The Important series of Chemistry Mcqs are given below:

Which of the p-block elements are not representative elements ?

A. Group-14 elements (IV-A)
B. Alkali metals (I-A)
C. Group-18 elements (VIII-A)
D. Halogens (VII-A)

Which of the following will not form crystalline structure with opporitely charged ions_________________?

A. H+
B. Mg2+
C. H-
D. Ca2+

Periodic table provides a basic framework to study elements with respect to their__________________?

A. Chemical properties
B. Physical properties
C. Properties of their compounds
D. All

Concept of Triads was introduced by_______________?

A. Dobereiner
B. Mendeleev
C. Newland
D. Al-Razi

Elements with similar chemical properties appear in the_________________?

A. Same family
B. p block elements
C. Same period
D. Right upper corner

In modern periodic table all the leements are arranged in ascending order of__________________?

A. Atomic mass
B. Valency
C. Atomic number
D. Valence electrons

Inner transition elements are called _________________?

A. Actinides
B. Lanthanides
C. Rare earth metals
D. All

Non-metals usually form _________________ oxides?

A. Acidic
B. Neutral
C. Amphoteric
D. All of the above

Best position of hydrogen in the periodic table is above I.A Group which is mainly due to_______________?

A. Both form ionic compounds
B. Similar outer most shell electronic configuration
C. Both are electropositive
D. All

Which one of the following sets consists of all coinage metals ?

A. Ag Au Hg
B. Cu Ag Au
C. Cu Hg Au
D. Cu Fe Au

Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?

A. The charge on its ions
B. The nature of its oxides
C. The formula of its oxide
D. Its number of isotopes

The atomic radii decreases by increasing atomic number in________________?

A. Halogens
B. Alkaline earth metal
C. Elements from Li to Ne
D. Alkali metal

An element has electronic conviguration 1s2 2s2 2p2. It belongs to__________________?

A. Group VII-A
B. Group IV-A
C. Group II-A
D. Group VI-A

Which of the following ion is stable in aqueous solution ?

A. H-
B. H+
C. Cl-
D. All are stable

The atoms of same element having same atomic number but different mass number are called____________________?

A. Isomers
B. Isobars
C. Isotopes
D. Isotropes

Which order of ionization energy is correct_________________?

A. Mg S
B. Mg P
C. Mg > A1
D. both B & C

Shielding effect across the period_________________?

A. Decreases
B. Increases
C. Can not be predicted
D. Remains constant

Higher value of electron affinity means__________________?

A. The reason is unknown
B. Atom will gain electron easily
C. Atom may form di-positive ion
D. Atom will lose electron easily

Melting points of VII-A group elements down the group ____________________?

A. Increase
B. Remain constant
C. Decrease
D. No regular trend

Which of the following possesses maximum hydration energy ?

A. K+
B. Na+
C. Mg+2
D. Ca+2

True increasing order of acidity of the oxides of Mn is_________________?

A. MnO2 > MnO > Mn2O7
B. Mn2O7 > MnO2 > MnO
C. MnO < MnO2 < Mn2O7
D. MnO2 > Mn2O7 > MnO

Which one of the following element has highest oxidation state in its compounds ?

A. Sn
B. Mn
C. Cr
D. O

Which of the following cannot exist in solution_________________?

A. O-2
B. Cl-
C. H+
D. Na+

Chemistry Mcqs

An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

A. Group IA
B. Group VIIA
C. Group IB
D. Group VIII

Which of the following always increases on going from top to bottom in a group ?

A. Metallic character
B. Oxidizing power
C. Electronegativity
D. Tendency to get reduced

Among halogens the highest boiling point is of___________________?

A. Chlorine
B. Flrorine
C. Bromine
D. Iodine

The scientist who did not contribute in the construction of periodic table ?

A. Moseley
B. Al-Razi
C. Dobereiner
D. Democritus

Which element was not known when Mendeleev proposed his classification ?

A. Sodium
B. Hydrogen
C. Copper
D. Germanium

Noble gases are named so because they are__________________?

A. Zero group elements
B. less reactive
C. Having completely filled valence shell
D. All

The longest period in the modern periodic table is___________________?

A. 6th
B. 5th
C. 2nd and 3rd both
D. 7th

Seventh period contains _________________ normal elements ?

A. 2
B. 6
C. 4
D. 8

Modern periodic table has been divided in ___________ blocks?

A. 8
B. 4
C. 2
D. 7

Amphoteric exides are those which possess ____________ properties?

A. Basic
B. Acidic
C. Acidic and basic
D. Neutral and acidic

Hydrogen resembles with carbon because of having________________?

A. Similar physical state
B. Same number of electrons in the valence shell
C. Remarkable reducing properties
D. Homovalent (show same valency)

In which of the following pairs are elements belonging to the same group ?

A. Magnesium & Aluminium
B. Nitrogen & Phosphorous
C. Boron & Beryllium
D. Gallium & Helium

Which one of the following is not a periodic property ?

A. Boiling point of elements
B. Melting point of elements
C. Ionization energy of elements
D. Coordination number of ions

Which discovery caused a revision in the periodic law as stated by Mendeleev ?

A. X-rays by Roentgen
B. Atomic number by Moseley
C. Location of nucleus by Rutherford
D. Natural radioactivity by Henry Bacquerel.

The property which increases upto group IV-A then decreases on wards_______________?

A. Atomic radii
B. Ionization energy
C. Melting & boiling points
D. Atomic volume

Deuterium reacts with oxygen to form________________?

A. Soft water
B. Heavy water
C. Hard water
D. Water gas

Ionization energy depends upon____________________?

A. Atomic size
B. Nuclear charge
C. Shielding effect
D. I.E depends upon all of the above and nature of orbital

Addition of 2nd electron to a uni negative ion is always____________________?

A. Data is insufficient
B. Endothermic
C. Exothermic
D. Unpredictable

Metallic characters of alkali metals_____________________?

A. Increase down the group
B. No regular trend
C. Decrease down the group
D. Remain same

Oxidation state of an atom represents____________________?

A. Number of electrons lost
B. Number of electrons gained
C. Apparent charge in compound
D. Its vacancies

Halides in which halogen atoms act as a bridge between two atoms of the other element are called___________________?

A. Electronegative halides
B. Covalent halides
C. Polymeric halides
D. Polymeric hydrides

Iodine is solid due to_________________?

A. Large value of dipole moment
B. Strong covalent bond
C. High polarizability
D. Strong hydrogen bonding

Keeping in view the size of atom which order is correct one ?

A. Lu > Ce
B. Ba > Mg
C. Mg > Sr
D. C1 > I

When – COOH is attached directly to the benzene ring the acid is called__________________?

A. Alicyclic
B. Aliphatic
C. Carboxylic
D. Aromatic

The common thing in phthalic acid and oxalic acid is that both are_________________?

A. Hydrocarbons
B. Dicarboxylic
C. Aromatic
D. Strong acids

The acid which is used as ink remover is_________________?

A. Oxalic acid
B. Adipic acid
C. Succinic acid
D. Acetic acid

Which acid is the manufacture of synthetic rubber ?

A. Acetic acid
B. Carbonic acid
C. Formic acid
D. Benzoic acid

In the formation of Zwitter ions proton goes from____________________?

A. Carboxyl to amino group
B. Amino group only
C. Amino to carboxyl group
D. Carboxyl group only

The organic acid that does not has COOH group is___________________?

A. Maleic acid
B. carbolic acid
C. phthalic acid
D. Succinic acid

The test which is used for the identification of amino-acids is_________________?

A. Ninhydrin test
B. Biuretic test
C. Molisch test
D. Benedict test

Chemistry Mcqs

Carboxylic acid reacts with ammonia to form ammonium salts which on heating produces_______________?

A. CO2
B. Ester
C. Alkane
D. Acidamide

The complete reduction carboxylic acid results in the formation of________________?

A. Alkene
B. Alkyne
C. Alkane
D. Alcohol

Picric acid is_________________?

A. dicarboxylic acid
B. monocarboxylc acid
C. aromatic carboxylic acid
D. none of these

Essential amino acids are___________________?

A. 15
B. 10
C. 5
D. 20

Which of the following is not a fatty acid ?

A. Acetic acid
B. Propanoic acid
C. Phthalic acid
D. Butanoic acid

The basic hydrolysis of ethyl acetate produces__________________?

A. acetic acid
B. ethanol
C. ethanol and acetic acid
D. ethanol and sodium acetate

Which of the following is not an ester_________________?

A. isobutyle formate
B. sodium butyrate
C. amyl acetate
D. octyl acetate

Which of the following has orange flavour__________________?

A. ethyl butyrate
B. octyl acetate
C. isobutyl formate
D. amyl lactate

Amino acids present in cheese___________________?

A. alanine
B. lysine
C. tyrosine
D. proline

Which of the following is an unsaturated carboxylic acid___________________?

A. oxalic acid
B. malonic acid
C. succinic acid
D. maleic acid

The common name of propane 1 3-dioic is_________________?

A. Aromatic acid
B. Oxalic acid
C. Malonic acid
D. Fumaric acid

The irritation caused by red ants bite is due to____________________?

A. Uric acid
B. Formic acid
C. Lactic acid
D. Acetic acid

Which of the following is the strongest acid ?

A. Acetic acid
B. Formic acid
C. Water
D. Propanoic acid

Acidic amino acids have________________?

A. 2 amino groups and 1 carboxylic group
B. 2 amino and 2 carboxylic groups
C. 2 carboxylic groups and 1 amino group
D. 1 amino and 1 carboxylic groups

The term internal salt refers to_____________________?

A. Basic character of amino acids
B. Acidic character of amino acids
C. Dipolar character of amino acids
D. Non-polar structure of amino acids

Which one of the following acids is present in lemon juice ?

A. Citric acid
B. Tartaric acid
C. Benzoic acid
D. Oxalic acid

Which one of following amino acid is neither acidic nor a basic in nature ?

A. Histidine
B. Lysine
C. Proline
D. Glutamic acid

Glycine is the name of an amino acid because___________________?

A. Sweet taste
B. Shining appearance
C. Bitter taste
D. Green colour

The organic acid that can be made from ethanol is_________________?

A. Acetic acid
B. Butanoic acid
C. Formic acid
D. Citric acid

The formula of palmitic acid_________________?

A. C15H31COOH
B. C17H33COOH
C. C13H27COOH
D. C17H35COOH

The aliphatic monocarboxylic acids are obtained by the hydrolysis of________________?

A. fats and proteins
B. proteins and oild
C. fats and oils
D. all above

An acid with unpleasant smell_________________?

A. acetic acid
B. formic acid
C. propionic acid
D. butyric acid

Carboxylic acid on reduction with HI / phosphorous yields_________________?

A. alkane
B. aldehydes
C. alcohols
D. ketones

Chemistry Mcqs

The reaction of carboxylic acids with alcohols in presence of cone. H2SO4 is called _________________?

A. esterification
B. hydrolysis
C. neutralization
D. saponification

Which of the following is not an amino acids_____________________?

A. aspartic acids
B. lactic acid
C. glumatic acid
D. glycine

Which of the following reaction is not shown by ketones ?

A. reaction with NaHSO3
B. reaction with HCN
C. reaction with 2 4 dinitrophenyl hydrazine
D. reaction with Fehling solution

Which of the following substances does not give iodoform test ?

A. ethyl alcohol
B. acetaldehyde
C. methyl alcohol
D. acetone

Which of the following aldehydes shows rapid reaction with sodium nitroprusside ?

A. accetaldehyde
B. formaldehyde
C. benzaldehyde
D. acetone

Which of the following compounds will react with Tollens reagent ?

A. CH3-CHO
B. CH3-COOH
C. CH3-CH-CH3
D. CH3-CO-CH2-CH3

Cannizzaros reaction is not given by__________________?

A. benzaldehyde
B. acetaldehyde
C. formaldehyde
D. trimethyl acetaldehyde

Ketones are comparatively less reactive than aldehdye. It is due to_______________?

A. steric hindrance
B. alkyl groups are electron donating
C. Both A and B
D. none

Which of the following is not a use of formaldehyde ?

A. in making medicine urotropine
B. in silvery mirror
C. in making throat lozenges
D. in making acetic acid

Which of the following is not a use of acetaldehyde ?

A. formation of mirror
B. formation of phenolic resins
C. antiseptic inhalant
D. formation of throat lozenges

Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield________________?

A. urotropine
B. Nylon 66
C. Aniline formaldehyde plastic
D. Bakelite

Which of the following will not give addition reaction with NaHSO3________________?

A. CH3CHO
B. HCHO
C. CH3-CH2-CHO
D. None of the above

Which of the following compounds has the empirical formula CH2O and reacts with sodium hydroxide ?

A. ethanol
B. carbonic acid
C. acetic acid
D. methanoic acid

Oxidation of primary alcohol gives________________?

A. Ester
B. Aldehyde
C. Alkene then – COOH
D. ketone

Ncleophilic addition reactions are catalysed__________________?

A. Base
B. Acid
C. Both A and B
D. None

Acetal on acid hydrolysis generates__________________?

A. Ketone
B. Alcohol
C. Both A & B
D. None of the above

Tetrahydroborate ion is the source of_______________?

A. H+
B. proton
C. both A & amp; B
D. H-

Dry distillation of calcium acetate results in the formation of_________________?

A. acetaldehyde
B. formaldehyde
C. methane
D. acetone

Cannizaros reaction takes place through the transfer of ____________________ from complex anion?

A. oxide ion
B. hydride ion
C. hydrogen ion
D. methoxide ion

Iodoform test can be used to distinguish between_________________?

A. acetaldehyde and methanal
B. ethanol and methanol
C. acetone and diethyl ketone
D. all of the above

Which of the following will have the highest boiling point ?

A. ethanal
B. methanol
C. propanal
D. hexanone

The carbon atom of carbonyl group is__________________?

A. cp3 hybridized
B. sp2 hybridized
C. sp hybridized
D. dsp2 hybridized

Chemistry Mcqs – (Science) MCQs Latest For FPSC, PPSC, NTS, KPPSC, SPSC & Other Tests

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