Chemistry Quiz for Class 11
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Chemistry Quiz for Class 11 Instructions:
- There will be 30 multiple choice questions in this Quiz.
- Answers to the questions will change randomly each time you start this Quiz.
- Practice this Quiz at least three times to secure High Marks.
- You can see your scores and ratings at the end of the Quiz.
- If you found any incorrect answers in the Quiz, click on the quiz title and comment on that MCQ so our team can update the incorrect answer on time.
- Question of
How many neutrons are in potassium-40?
- 21
- 40
- 19
- 27
- Question of
What is the electron configuration for Sulphur?
- (2, 8, 6)
- (2, 6, 5)
- (2, 8, 7)
- (2, 6, 8)
- Question of
How is a mixture different from a compound?
- Components of a mixture can be separated by physical means.
- Particles of a mixture are combined chemically.
- Components of a mixture can only be separated chemically.
- The composition of a mixture may be constant.
- Question of
If a certain mixture is homogeneous, you would properly conclude that the physical properties and the composition are:
- Are the same in every small volume element of the sample
- Are different from one part of the sample to another
- Vary smoothly from top to bottom of the sample
- None of these
- Question of
What is the name for the compound CuOH?
- Copper(I) hydroxide
- Copper(I) hydrogen oxide
- Copper hydroxide
- Copper hydrogen oxide
- Question of
Balance the following: ___BF3 + ___Li2SO3 + ___B2(SO3)3 + ___LiF What will the coefficients be for the balanced reaction?
- 2, 3, 1, 6
- 2, 4, 1, 5
- 1, 2, 1, 3
- 1, 3, 2, 6
- Question of
Which of the following concentration term is affected by temperature?
- Molarity
- Molefraction
- Molality
- None of these
- Question of
Choose the number of atoms present in 1mole of He.
- 6.022 X 1023
- 6.022 X 1019
- 6.022 X 1020
- 6.022 X 1021
- Question of
Empirical formula of C6H12O6 is.
- CH2O
- C6H12O6
- C3H6O3
- CHO
- Question of
Which of these determines the presence or absence of chemical compounds in a chemical reaction?
- Qualitative analysis
- Quantitative analysis
- Gravimetric analysis
- Volumetric analysis
- Question of
Which of these is founded upon the law of conservation of mass?
- Stochiometry
- Electrolysis
- Mass Number
- Red-oxidation
- Question of
Which of these deals with the Structure, property and reaction of organic compounds which contains carbon in a covalent bonding?
- Organic chemistry
- Reduction reaction
- Carbonisation
- Covalency
- Question of
Which of these is a part of physical chemistry that deals with the study of rate of reaction?
- Chemical kinetics
- Kinematics
- Rate of reaction
- Redox
- Question of
What is the branch of chemistry that deals with the relationship between electricity and chemical change?
- Electrochemistry
- Electrolysis
- Physochemistry
- Hydrolysis
- Question of
Which of these is not a quantitative information on the physical property of organic compounds?
- Odor
- Melting point
- Index of refraction
- Boiling point
- Question of
According to Dalton’s Atomic Theory, matter consists of indivisible ______.
- atoms
- mixtures
- molecules
- ions
- Question of
What’s the wavelength for the visible region in electromagnetic radiation?
- 400 – 750 nm
- 400 – 750 mm
- 400 – 750 μm
- 400 – 750 pm
- Question of
Atomic radii ______ along the periods.
- decreases
- increases
- remains constant
- irregular
- Question of
Combination of two atomic orbitals results in the formation of two molecular orbitals namely ______.
- one bonding and one non-bonding orbital
- two bonding orbitals
- two non-bonding orbitals
- two bonding and non-bonding orbitals
- Question of
Stability increases, as the energy ______.
- decreases
- doesn’t change
- increases
- increases and then decreases
- Question of
PV/nRT is known as ______.
- compressibility factor
- volume factor
- pressure factor
- temperature factor
- Question of
Consider that, a ball is immersed in water at room temperature and then taken out having 18 grams of water on it, how much amount of energy is required to dry that water at room temperature?
- 41.53 KJ/mol
- 41.3 KJ/mol
- 49.53 KJ/mol
- 41.43 KJ/mol
- Question of
At dynamic equilibrium the concentration of both the reactants and products are ______.
- not equal
- cannot predict
- equal
- sometimes equal sometimes not equal
- Question of
In which of the following conditions do you think the rates of both forward and backward reactions are the same?
- equilibrium
- the beginning of a reaction
- not in an equilibrium
- unstable equilibrium
- Question of
In the reaction of formation of magnesium oxide magnesium undergoes ______.
- oxidation
- hydrogenation
- decomposition
- reduction
- Question of
Which of the following mixture is known as water gas?
- Carbon monoxide and hydrogen
- Hydrogen and deuterium
- Oxygen and carbon dioxide
- HCL
- Question of
Caustic soda and quicklime are together known as ______.
- soda lime
- quicklime
- caustic soda
- washing soda
- Question of
Which of the following mixture is known as producer gas?
- Carbon monoxide and nitrogen
- Carbon monoxide and hydrogen
- Carbon dioxide and hydrogen
- Carbon dioxide and nitrogen
- Question of
What is the valency of carbon?
- Tetravalent
- Trivalent
- Divalent
- Pentavalent
- Question of
What is the full form of DDT?
- Dichlorodiphenyltrichloroethane
- Diphenyldichlorotrichloroethane
- Dichlorodiphenyltriphenylethane
- Dichlorodiphenyltrichloroethene