SMART INSTITUTE CHEMISTRY FLP
SMART INSTITUTE CHEMISTRY QUIZ
Welcome to the SMART INSTITUTE CHEMISTRY FLP! Test your knowledge of chemistry concepts, from organic reactions to periodic trends. This quiz features 56 carefully crafted questions designed to challenge students, educators, and chemistry enthusiasts alike.
- Multiple choice format
- Covers a wide range of chemistry topics
- Instant feedback on answers
69-In a given period of periodic table, the element with the lowest first ionization energy is always
An alkaline earth metal
An alkali metal
A halogen
A noble gas
70-Alkanes mainly undergo .......... reactions
Free radical
Ionic elimination
Electrophilic addition
Nucleophilic addition
71-Which one is mostly likely to give SN1 reaction
CH3CH2CH2CH2Br
(CH3)2CHCH2Br
CH3CH2CHBrCH3
(CH3)3CBr
72-The compound on oxidation gives a ketone. The original compound is
Tertiary alcohol
Secondary alcohol
Primary alcohol
Carboxylic acid
73-Which one of the following compounds will be most readily attacked by an electrophile?
Phenol
Benzene
Nitrobenzene
Chlorobenzene
74-An organic compound 'X' on treatment with acidified K2Cr2O7 gives a ketone which reacts with I2 (iodine) and sodium hydroxide to form triiodomethane. The compound 'X' is
CH3CH(OH)CH3
CH3COCH3
CH3CHO
CH3OH
75-Aldehydes and ketones are carbonyl compounds. Which of them reacts with NaBH4 and also with Fehling's reagent
Ketones only
Aldehydes only
Both aldehydes and ketones
Never aldehydes nor ketones
76-Which of the following orders of relative strength of acids is correct
ClCH2COOH>FCH2COOH >BrCH2COOH
ClCH2COOH>BrCH2COOH >FCH2COOH
BrCH2COOH>ClCH2COOH>FCH2cooh
FCH2COOH>ClCH2COOH>BrCH2COOH
77-Bonds present in NH4Cl is
Electrovalent and covalent bonds
Electrovalent and coordinate covalent bonds
Covalent and coordinate bonds
Electrovalent bond, covalent and coordinate covalent bond
78-Phosphorus sulphide is burnt completely to produce P2O5 and SO2. How many moles of oxygen gas are needed to burn half mole of P4S3? P4S3 + 8O2 .........> 2P2O5 + 3SO2
3
2
8
4
79-Acetic acid is soluble in
Water, alcohol, ether
HCl, HBr, Hi
Bromine water
All of these
80-If water is present on a cup placed on a table, what will be the system in this case?
Water
Water in cup
Whole table
All of these
81-Alkali metals group lies in........
D-block
S-block
F-block
P-block
82-Kinetic energy is the sum of
Rotational & vibrational
Rotational, vibrational and translation
Translation & rotational
All of these
83-In NaCl crystal, chloride ions present at the face center are distributed in
One unit cell
4 unit cells
8 unit cells
2 unit cells
84-Actual yield is less than theoretical yield due to
Operational losses
Side reaction
Reaction reversibility
All of these
85-Legume and collagen protein are present in which type of body tissues
Cardiac
Connective
Epithelial
Epidermis
86-The increase in size of an anion is due to increase in repulsion of
Electron-proton
Electron-electron
Electron-nucleus
Proton-nucleus
87-Graphite has a structural similarity with
B2H6
B
B4C
BN
88-The order of reaction for which half-life is inversely proportional to the concentration of reaction is
Second order
First order
Zero order
Third order
89-A liquid crystalline state exists between two temperatures I.e melting temperature and .....temperature
Boiling
Clearing
Freezing
All of these
90-Plasma 'the fourth state of matter was identified by
Berzelius
Dalton
William Crooks
Rutherford
91-Acetaldehyde undergoes polymerization with conc.H2SO4 and form.........?
Acetylides
Paraldehyde
Bakelite
Meta acetaldehyde
92-There are just only a few stable compounds, formed by noble gases like
XeF2
XeO3
XeOF2
All of these
93-Who attributed the deviation of real gases from ideal behaviour?
Boyle's law
Avogadro's law
Charles's law
Van der Waals
94-An electron in an atom is completely described by its
2 quantum numbers
4 quantum numbers
Only one quantum number
3 quantum numbers
95-Enzymes are ...... In nature
Proteins
Lipids
Polypeptides
Peptides
96-The properties of liquid crystals are intermediate b/w crystals and
Anisotropic liquids
Isotropic liquids
Nematic liquids
Liquids
97-Fractions of crude petroleum can be obtained by using ....?
Destructive distillation
Vacuum distillation
Fractional distillation
Distillation
98-In proteins the H-bonding is present b/w ....?
C-H
O-H
N-H
Cl-H
99-What is the mass of one mole aspartame having formula C14H18N2O5 ?
94 g
50 g
294 g
290 g
100-Which of the following compound is an amide?
NH4CNO
NH2CONH2
NH2COCH3
NH2COONH2
101-Evaporation is a ........ process?
Exothermic
Non-spontaneous
Spontaneous
None of these
102-If uncertainty in momentum of electron is zero, the uncertainty in its position would be....?
Less than zero
One
More than zero
Infinite
103-From which of the following ketone can be prapared?
Propyne
Ca Acetate
Secondary alcohol
All of these
104-On which of the following factors Hydration Energy depends
Charge to size ratio
Polarization power of cations
Polarizability of anions
All of these
105-The crude petroleum is separated in fraction by
Filtration
Steam distillation
Fractional distillation
Fractional sublimation
106-Distillation of calcium acetate and calcium formate produces?
Formaldehyde
Acetaldehyde
Acetone
None of these
107-After the hydrolysis of ester, the change in concentration of acid at different intervals is calculated by
Transition with KMnO4
Distillation
Titration with standard alkali
Evaporation
108-Most of the enzyme reactions ........ ?
Reversible
Condensation
Irreversible
Oxidation
109-Which of the following ester give Jasmine Flavour?
Ethyl acetate
Octyl acetate
Amyl butyrate
Benzyl acetate
110-Del Hf of which of the following cannot be measured directly?
Al2O3
CO
B2O3
All of these
111-How many unhybridized orbitals are there in ethyne molecule?
1
2
3
4
112-The rate of diffusion of a gas having molar mass 16 as compared to H2 gas will be
6 times
One fourth
4 times
One eight
113-In electrolysis of NaNO3 , Na+ is
Discharged at anode
Do not discharge
Discharge at cathode
None of these
114-In one second if the concentration changes from 0.1 to 0.25 then the rate will be
0.02 moles/dm3s^-1
0.03 moles/dm3s^-1
0.15 moles/dm3s^-1
0.11 moles/dm3s^-1
115-Enzymes which bring about exchange of functional group is called .........
Oxidoreductase
Hydrolases
Ligase
Transferases
116-Lighter the oxidation state of metal more will be ....?
Acidity of metal
Polarization power
Basicity of metal
None of these
117-It consists of discrete molecules
Sodium chloride
Copper
Dry ice
CaCl2
118-The order of size of 's' orbital is as fellows
4s<3S<2s<1s
4s>3s>2s>1s
Constant
None of these
119-Among halogens Iodine is solid at room temperature while Br2 is liquid and Cl.F are gases at room temperature, why?
Due to stronger dipole forces
Due to stronger london forces
Due to polarity
Due to stronger debye forces
120-The relative atomic mass of copper is
63.345 amu
63.55 amu
63.455 amu
63.456
121-Current in electrolysis is carried through
Free electrons
Negative ions
Positive ions
Both negative and positive ions
122-The substance that is attached to the enzyme at specific place and converted into product is called as?
Co-factor
Active site
Iso-zyme
Substrate
123-How carboxylic acid are formed from alcohol?
Hydrolysis
Oxidation
Reduction
Protonation
124-Energy for the endothermic reaction is given a ...... value?
Positive
0
Negative
Neither positive nor negative
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