MHT-CET
Q. Which factor does NOT affect the rate of adsorption? (2023)
A.
Temperature
B.
Surface area of adsorbent
C.
Concentration of adsorbate
D.
Color of adsorbent
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Solution
The color of the adsorbent does not affect the rate of adsorption, while temperature, surface area, and concentration do.
Correct Answer: D — Color of adsorbent
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Q. Which gas is produced during the electrolysis of water? (2020) 2020
A.
Oxygen
B.
Nitrogen
C.
Carbon Dioxide
D.
Hydrogen
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Solution
During the electrolysis of water, oxygen is produced at the anode.
Correct Answer: A — Oxygen
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Q. Which gas is produced during the electrolysis of water? (2022)
A.
Oxygen
B.
Nitrogen
C.
Carbon Dioxide
D.
Hydrogen
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Solution
During the electrolysis of water, oxygen is produced at the anode.
Correct Answer: A — Oxygen
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Q. Which gas is produced when an acid reacts with a metal? (2023) 2023
A.
Oxygen
B.
Hydrogen
C.
Nitrogen
D.
Carbon Dioxide
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Solution
When an acid reacts with a metal, hydrogen gas is produced.
Correct Answer: B — Hydrogen
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Q. Which gas is produced when hydrochloric acid reacts with sodium bicarbonate? (2020)
A.
Oxygen
B.
Carbon Dioxide
C.
Hydrogen
D.
Nitrogen
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Solution
The reaction between hydrochloric acid (HCl) and sodium bicarbonate (NaHCO3) produces carbon dioxide (CO2) as one of the products.
Correct Answer: B — Carbon Dioxide
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Q. Which gas law relates pressure and temperature of a gas at constant volume?
A.
Boyle's Law
B.
Charles's Law
C.
Gay-Lussac's Law
D.
Avogadro's Law
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Solution
Gay-Lussac's Law states that the pressure of a gas is directly proportional to its temperature at constant volume.
Correct Answer: C — Gay-Lussac's Law
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Q. Which group in the periodic table contains the noble gases? (2023)
A.
Group 1
B.
Group 2
C.
Group 17
D.
Group 18
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Solution
Noble gases are found in Group 18 of the periodic table, characterized by their lack of reactivity due to having a full valence shell.
Correct Answer: D — Group 18
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Q. Which haloalkane has the highest boiling point?
A.
CH3Cl
B.
C2H5Br
C.
C3H7Cl
D.
C4H9I
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Solution
C4H9I has the highest boiling point due to the larger molecular size and stronger van der Waals forces.
Correct Answer: D — C4H9I
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Q. Which hydrocarbon has the highest boiling point?
A.
Methane
B.
Ethane
C.
Propane
D.
Butane
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Solution
Butane has the highest boiling point among the given hydrocarbons due to its larger molecular size.
Correct Answer: D — Butane
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Q. Which hydrocarbon is used as a fuel in lighters?
A.
Methane
B.
Butane
C.
Ethylene
D.
Acetylene
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Solution
Butane is commonly used as a fuel in lighters.
Correct Answer: B — Butane
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Q. Which law states that energy cannot be created or destroyed, only transformed? (2021)
A.
Zeroth Law
B.
First Law
C.
Second Law
D.
Third Law
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Solution
The First Law of Thermodynamics states that energy cannot be created or destroyed, only transformed.
Correct Answer: B — First Law
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Q. Which molecule has the highest electronegativity difference? (2021)
A.
HCl
B.
NaCl
C.
CO
D.
H2
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Solution
NaCl has the highest electronegativity difference between sodium and chlorine, leading to a strong ionic bond.
Correct Answer: B — NaCl
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Q. Which of the following acids is a dicarboxylic acid?
A.
Oxalic acid
B.
Acetic acid
C.
Formic acid
D.
Propanoic acid
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Solution
Oxalic acid is a dicarboxylic acid with two carboxyl groups.
Correct Answer: A — Oxalic acid
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Q. Which of the following acids is a saturated carboxylic acid?
A.
Butanoic acid
B.
Hexenoic acid
C.
Cyclopropanoic acid
D.
Benzoic acid
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Solution
Butanoic acid is a saturated carboxylic acid.
Correct Answer: A — Butanoic acid
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Q. Which of the following acids is used in the production of esters?
A.
Acetic acid
B.
Sulfuric acid
C.
Nitric acid
D.
Hydrochloric acid
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Solution
Acetic acid is commonly used in the production of esters.
Correct Answer: A — Acetic acid
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Q. Which of the following amines is the most basic? (2023) 2023
A.
Methylamine
B.
Aniline
C.
Ethylamine
D.
Dimethylamine
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Solution
Dimethylamine is the most basic due to the electron-donating effect of the two methyl groups, which increases the availability of the lone pair on nitrogen.
Correct Answer: D — Dimethylamine
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Q. Which of the following best describes the particles in a gas? (2015)
A.
Tightly packed and vibrating
B.
Close together and sliding past each other
C.
Far apart and moving freely
D.
Fixed in place
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Solution
In gases, particles are far apart and move freely, allowing them to fill the container they are in.
Correct Answer: C — Far apart and moving freely
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Q. Which of the following changes will NOT affect the position of equilibrium in a chemical reaction?
A.
Changing the concentration of reactants
B.
Changing the temperature
C.
Adding a catalyst
D.
Changing the pressure
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Solution
Adding a catalyst speeds up the rate of both the forward and reverse reactions equally, thus it does not affect the position of equilibrium.
Correct Answer: C — Adding a catalyst
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Q. Which of the following complexes exhibits geometrical isomerism? (2022) 2022
A.
[CoCl2(NH3)4]+
B.
[Ni(CO)4]
C.
[CuCl2(NH3)2]
D.
[Zn(NH3)4]2+
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Solution
[CoCl2(NH3)4]+ can exhibit geometrical isomerism due to the different arrangements of ligands around the cobalt ion.
Correct Answer: A — [CoCl2(NH3)4]+
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Q. Which of the following complexes is paramagnetic? (2023) 2023
A.
[Ni(CN)4]2-
B.
[Fe(H2O)6]3+
C.
[Cu(NH3)4]2+
D.
[Zn(NH3)4]2+
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Solution
[Fe(H2O)6]3+ has unpaired electrons, making it paramagnetic, while the others have all paired electrons.
Correct Answer: B — [Fe(H2O)6]3+
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Q. Which of the following compounds contains a double bond? (2023)
A.
H2O
B.
CO2
C.
NH3
D.
CH4
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Solution
Carbon dioxide (CO2) contains double bonds between carbon and oxygen.
Correct Answer: B — CO2
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Q. Which of the following compounds contains a p-block element? (2022) 2022
A.
NaCl
B.
MgO
C.
SiO2
D.
Fe2O3
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Solution
Silicon dioxide (SiO2) contains silicon, which is a p-block element.
Correct Answer: C — SiO2
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Q. Which of the following compounds has a dipole moment? (2023)
A.
CO2
B.
CH4
C.
HCl
D.
CCl4
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Solution
HCl has a dipole moment because it is a polar molecule with a significant difference in electronegativity between hydrogen and chlorine.
Correct Answer: C — HCl
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Q. Which of the following compounds is a ketone? (2023) 2023
A.
Propanal
B.
Butanone
C.
Benzaldehyde
D.
Ethanal
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Solution
Butanone is a ketone, characterized by having the carbonyl group (C=O) between two carbon atoms.
Correct Answer: B — Butanone
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Q. Which of the following compounds is a primary haloalkane?
A.
CH3CH2CH2Cl
B.
CH3Cl
C.
C2H5CCl3
D.
C6H5Cl
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Solution
CH3CH2CH2Cl is a primary haloalkane as the carbon attached to the halogen is bonded to only one other carbon.
Correct Answer: A — CH3CH2CH2Cl
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Q. Which of the following compounds is a product of the reaction between an aldehyde and a Grignard reagent?
A.
Alcohol
B.
Ketone
C.
Carboxylic acid
D.
Ester
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Solution
The reaction of an aldehyde with a Grignard reagent produces a primary alcohol.
Correct Answer: A — Alcohol
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Q. Which of the following compounds is an example of a base? (2019)
A.
HCl
B.
NaOH
C.
H2SO4
D.
NH4Cl
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Solution
Sodium hydroxide (NaOH) is a strong base.
Correct Answer: B — NaOH
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Q. Which of the following compounds is an example of a p-block element compound? (2020)
A.
NaCl
B.
MgO
C.
AlCl3
D.
CaF2
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Solution
AlCl3 is a compound formed from a p-block element (Aluminum) and is a classic example of p-block chemistry.
Correct Answer: C — AlCl3
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Q. Which of the following compounds is an example of an aromatic hydrocarbon? (2023)
A.
Cyclohexane
B.
Benzene
C.
Ethylene
D.
Propane
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Solution
Benzene is an aromatic hydrocarbon characterized by its stable ring structure and delocalized electrons.
Correct Answer: B — Benzene
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Q. Which of the following compounds is an isomer of butanol?
A.
2-Butanol
B.
1-Butanol
C.
Butyric acid
D.
Butene
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Solution
2-Butanol is an isomer of butanol, differing in the position of the hydroxyl group.
Correct Answer: A — 2-Butanol
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