SMART INSTITUTE NUMS CHEMISTRY FLP-02

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Chemistry Mastery Quiz

Test your knowledge of chemistry concepts with our engaging quiz designed for students and enthusiasts alike! This quiz covers a wide range of topics, including thermodynamics, chemical bonding, and reaction mechanisms.

Challenge yourself with:

38 multiple-choice questions
Detailed explanations for each answer
A fun way to reinforce your understanding of chemistry

38 Questions10 MinutesCreated by ExploringAtoms245

61-1 gram molecule refers to amount in grams

Equivalent to 1 mole of an atom

Equivalent to 1 mole of ionic specie

Equivalent to 1 mole of a molecule

Of an ionic ionic compound

62-1 gram formula refers to

Amount in grams equivalent to 1 mole of an atom

Amount in grams equivalent to 1 mole of a covalent compound

Amount in grams equivalent to 1 mole of an ionic compound

Amount in grams equivalent to 1 mole of an ion

63-Gases deviate from ideal behavior at high pressure. WOF is correct for non-ideality

At high pressure, the gas molecules move in one direction only

At high pressure, the collision between the gas molecules are increased maniflod

At high pressure, the volume of the gas becomes insignificant

At high pressure, the inter-molecular attraction become significant

64-Evaporation is designated as a cooling process because of the reason

It is a surface phenomenon

It involves heat absorption from its surrounding

High energy molecules leave behind the low energy molecules and cause cooling

All of these

65-The boiling point of compound is mostly raised by

Dipole induced dipole interaction

London dispersion forces

Intermolecular hydrogen bonding

Intra molecular hydrogen bonding

66-Propanone is miscible in water due to

Both are polar molecule

Dipole dipole interaction

H-bonding

All of these

67-Which of the following pairs of gases possess equal volume at STP

44 g CO2 and 44 g CO

16 g O2 and 32g CH4

3.01 X 10^23 molecules of CO and 3.01 x 10^23 gram H2

0.5 mole of NO and 16 g O2

69-Ionization energy depends upon

Atomic and ionic radii

Proton to electron ratio

Shielding effect

All of these

70-The incorrect statement about d-orbitals

It is not present in first two principle energy levels

They are associated with transition elements

They are five degenrate orbitals in d-subshell

D-orbitals can fill before p-orbitals in the same principle energy level

71-WOF statements is incorrect

Double bond is stronger than single

Sigma bond is stronger than pi bond

Triple bond is shorter than double bond

Sigma bond is weaker than pi bond

72-All the metals shine when they are freshly cut. The reason is

The conductivity of the metal is increased

The process of cutting gives energy to the metal atoms

The electrons become less delocalized according to the valence bond theory

The electrons are excited at higher energy levels and emit the photons when they fall back

73-If internal energy of the system is increased

Change in the state of the system occurs

Temperature of the system may rise

Chemical reaction may take place

All of these

75-WOF cell can convert electrical energy directly into chemical energy

Silver battery

Lead storage battery

Daniel cell

Down's cell

76-In a galvanic cell, the electrode occupying a lower position in the electrochemical series

Will act as cathode

Reduction will take place on it

Oxidation will take place on it

Both a and b

77-With increase in temperature, the ionic product of water

Decreases

Remains same

Increases

May increase or decrease

78-On adding NH3 to water

Ionic product will increase

[H3O+] will increase

Ionic product will increase

[H3O+] will decrease

79-Arrhenius equation can be used for evaluating

Specific rate constant

Half life period

Activation energy

Both a and c

80-The specific rate constant of a chemical reaction is the rate of the reaction when the concentration of the reactant is

Less than unity

Greater than unity

Equal to unity

Equal to the concentration of 2nd order reaction

81-In a same period, an element X belongs to II-A group and another element Y belongs to V-A group, mark the incorrect statement

X is greater in atomic/ionic size comparatively to Y

Y has more free electrons as compared to X

Y is a good conductor as compared to X

X is surely a metal while Y might be non-metal or metalloid

82-Melting and Boiling points increase along a period upto the group IV-A and then decrease along the same period. This is because

Number of valence electrons for bonding is maximum for IV-A elements

Polarizability increases upto IV-A group along a period

Elements upto IV-A are metals and nonmetals/metalloids onwards along a same period

All of these

83-When light is exposed to the transition metals, the electronic transition to the higher orbitals takes place in

Orbitals of f-subshell

Orbitals of d-subshell

Orbitals of p-subshell

Both a and b

84-The geometric isomerism is caused by

The restricted rotation of pi bond

Free rotation of pi-bond

The presence of similar groups on a carbon atom

The presence of triple bond in a compound

85-CHlorination of benzene in the presence of sunlight

Benzyl chloride

Benzotrichloride

Hexachlorobenzene

Benzal chloride

86-The reaction reagent used as a test for alkyl benzene is

Baeyer's reagent

Acidified KMnO4 or K2Cr2O7

AlCl3

HNO3/Conc. H2SO4

87-Benzene undergoes ............ readily

Substitution reaction

Oxidation reaction

Addition reaction

Elimination reaction

88-Free radical mechanism of halogenation of alkenes follow which of the following steps

Termination

Propagation

Initiation

All of these

89-Alkyl halides are considered to be very reactive compound towards nucleophilic because

They have an electrophilic carbon

They have an electrophilic carbon and a good leaving group

They have an electrophilic carbon and a bad leaving group

They have a nucleophilic carbon and a good leaving group

90-Which of the following is correct about SN1 reactions

Retention of the configuration of the alkyl halide molecule

Unimolecular reactions

Reaction rate is a function of the alkyl halide

All of these

91-During hydration of alkenes to form alcohols, alkenes are first dissolved in

Water

Dilute H2SO4

Concentration of H2SO4

Both b and c are used

93-Which of the following ketones will produce propanoic acid only after oxidation by acidified potassium dichromate

Ethyl n-propyl ketone

Ethyl methyl ketone

Dimethyl ketone

Diethyl ketone

94-Reaction that enlarge the carbon chain of carbonyl compound

Cannizzaro's reaction

Addition of hydrogen cyanide

Addition of sodium sulphite

Haloform reaction

98-Twisting and folding of polypeptide chain is the result of

Primary structure

Secondary structure

Tertiary structure

Quaternary structure

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