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#1 Class 11 Chemistry The s-Block Elements 2023 Short 1M MP BOARD
Which colour is formed by Na in the Bunsen flame?
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#2 Class 11 Chemistry Structure of Atom 2023 Short 1M MP BOARD
What is the approximate ratio of the radius of an Atom to that of its Nucleus?
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#3 Class 11 Chemistry Thermodynamics 2023 Mcq 1M MP BOARD
The heat of a reaction at constant pressure is given by -
A. $H_P - H_R$
B. $U_P - U_R$
C. $q + w$
D. $\dfrac{q_{rev}}{T}$
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#4 Class 11 Chemistry Chemical Bonding and Molecular Structure 2023 Mcq 1M MP BOARD
Which of the following molecules is linear in shape?
A. $NH_3$
B. $BeCl_2$
C. $H_2O$
D. $CH_4$
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#5 Class 11 Chemistry Chemical Bonding and Molecular Structure 2023 Mcq 1M MP BOARD
An ionic bond is formed by -
A. Transfer of electrons
B. Sharing of electrons
C. Donation of an electron pair by one atom
D. Overlapping of orbitals
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#6 Class 11 Chemistry Classification of Elements and Periodicity in Properties 2023 Mcq 1M MP BOARD
The periodic table based on atomic number is the -
A. Mendeleevs periodic table
B. Modern periodic table
C. Dobereiners triads
D. Newlands octaves
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#7 Class 11 Chemistry Structure of Atom 2023 Mcq 1M MP BOARD
The neutron was discovered by -
A. Thomson
B. Goldstein
C. Chadwick
D. Rutherford
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#8 Class 11 Chemistry Some Basic Concepts of Chemistry 2023 Mcq 1M MP BOARD
The number of significant figures in 0.0250 is -
A. 5
B. 3
C. 4
D. 2
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#9 Class 11 Chemistry Equilibrium 2023 Short 1M MP BOARD
In the reaction $CO(g) + Cl_2(g) \rightleftharpoons COCl_2(g)$, the ratio $\dfrac{K_P}{K_C}$ is equal to ____ .
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#10 Class 11 Chemistry Thermodynamics 2023 Short 1M MP BOARD
On melting of ice into water, entropy ____ .
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#11 Class 11 Chemistry Chemical Bonding and Molecular Structure 2023 Short 1M MP BOARD
The shape of the $NH_3$ molecule is ____ .
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#12 Class 11 Chemistry Classification of Elements and Periodicity in Properties 2023 Short 1M MP BOARD
Non-metals are present on the ____ side of the periodic table.
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#13 Class 11 Chemistry Some Basic Concepts of Chemistry 2023 Short 1M MP BOARD
The empirical formula of Benzene is ____ .
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#14 Class 11 Chemistry Organic Chemistry - Some Basic Principles and Techniques 2023 Mcq 1M MP BOARD
Which of the following is an isomer of propanal?
A. Propane
B. Acetone
C. Propane-1-ol
D. Propanoic acid
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#15 Class 11 Chemistry Redox Reactions 2023 Mcq 1M MP BOARD
The conversion of glucose to $CO_2$ is -
A. Oxidation
B. Reduction
C. Oxidation and Reduction
D. Neither oxidation nor reduction
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#16 Class 11 Chemistry Thermodynamics 2023 Mcq 1M MP BOARD
If the enthalpy of B is greater than that of A, then the reaction $A \to B$ will be -
A. Exothermic
B. Endothermic
C. Reversible
D. Spontaneous
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#17 Class 11 Chemistry Chemical Bonding and Molecular Structure 2023 Mcq 1M MP BOARD
Out of the following, in which molecule are all the bonds NOT the same?
A. $AlF_3$
B. $NF_3$
C. $ClF_3$
D. $BF_3$
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#18 Class 11 Chemistry Classification of Elements and Periodicity in Properties 2023 Mcq 1M MP BOARD
Which character always increases when we go from top to bottom in a group?
A. Atomic radii
B. Ionization potential
C. Electron affinity
D. Electronegativity
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#19 Class 11 Chemistry Some Basic Concepts of Chemistry 2023 Mcq 1M MP BOARD
Which of the following methods of expressing the concentration of a solution changes with temperature?
A. Mass percentage (w/w%)
B. Mole fraction
C. Molarity
D. Molality
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#20 Class 11 Chemistry Organic Chemistry - Some Basic Principles and Techniques 2025 Long 4M MP BOARD
What is Isomerism? Represent Position Isomerism and Functional Isomerism using the molecular formula $C_3H_8O$.
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