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#1 Class 11 Chemistry Chemical Bonding and Molecular Structure 2026 Short 1M MP BOARD
State true or false: The sigma ($\sigma$) bond is stronger than the pi ($\pi$) bond.
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#2 Class 11 Chemistry Hydrocarbons 2026 Short 1M MP BOARD
State true or false: In saturated hydrocarbons, double bonds are present between carbon-carbon and carbon-hydrogen.
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#3 Class 11 Chemistry Hydrocarbons 2026 Short 1M MP BOARD
The molecular formula of benzene is ____ .
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#4 Class 11 Chemistry Some Basic Concepts of Chemistry 2026 Short 1M MP BOARD
Mercury sulphide was discovered by ____ .
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#5 Class 11 Chemistry Equilibrium 2026 Mcq 1M MP BOARD
An example of a Lewis acid is -
A. $MgCl_2$
B. $SnCl_4$
C. $BCl_3$
D. $NaCl$
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#6 Class 11 Chemistry Some Basic Concepts of Chemistry 2026 Mcq 1M MP BOARD
Which one of the following will have the largest number of atoms?
A. 1 g Au (s)
B. 1 g Na (s)
C. 1 g Li (s)
D. 1 g $Cl_2$ (g)
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#7 Class 11 Chemistry Thermodynamics 2023 Long 5M MP BOARD
Write Hesss Law. How does it obey the First Law of Thermodynamics? Write with example.
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#8 Class 11 Chemistry Hydrocarbons 2023 Long 4M MP BOARD
Benzene easily exhibits electrophilic substitution reactions but it is difficult to give nucleophilic substitution. Give reason.
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#9 Class 11 Chemistry Redox Reactions 2023 Short 3M MP BOARD
Define the following - (i) Valency (ii) Oxidation state (iii) Electrode potential
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#10 Class 11 Chemistry Equilibrium 2023 Short 3M MP BOARD
Write the effect on the precipitation of Group III hydroxides if NaCl and NaOH are used in place of $NH_4Cl$ and $NH_4OH$.
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#11 Class 11 Chemistry Organic Chemistry - Some Basic Principles and Techniques 2023 Short 2M MP BOARD
Write the structural formula of the following compounds - (i) Benzaldehyde (ii) Acetone
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#12 Class 11 Chemistry Organic Chemistry - Some Basic Principles and Techniques 2023 Short 2M MP BOARD
Classify the following reagents into electrophilic and nucleophilic reagents - $NH_3$, $BF_3$, $SO_3$, $CN^-$
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#13 Class 11 Chemistry Equilibrium 2023 Short 2M MP BOARD
State Ostwalds law of dilution.
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#14 Class 11 Chemistry Chemical Bonding and Molecular Structure 2023 Short 2M MP BOARD
Give reason - out of $FeCl_2$ and $FeCl_3$, which one has the higher covalent character?
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#15 Class 11 Chemistry Chemical Bonding and Molecular Structure 2023 Short 2M MP BOARD
Give reason - out of $NH_3$ and $NF_3$, which molecule has the higher dipole moment?
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#16 Class 11 Chemistry Classification of Elements and Periodicity in Properties 2023 Short 2M MP BOARD
Write any two differences between effective nuclear charge and nuclear charge.
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#17 Class 11 Chemistry Classification of Elements and Periodicity in Properties 2023 Short 2M MP BOARD
Write any two differences between electron gain enthalpy and electronegativity.
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#18 Class 11 Chemistry Some Basic Concepts of Chemistry 2023 Short 2M MP BOARD
State the Law of Constant Proportion.
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#19 Class 11 Chemistry Organic Chemistry - Some Basic Principles and Techniques 2023 Short 1M MP BOARD
Write one functional isomer of Ethyl alcohol.
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#20 Class 11 Chemistry Chemical Bonding and Molecular Structure 2023 Short 1M MP BOARD
Write the unit for the measurement of Bond length.
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