Chemistry - MOST IMPORTANT Bihar Police SI Previous Year Questions
Practice real questions from previous year exams of Bihar Police SI.
📘 Acids, Bases and Salts📚 Physical Properties of Acids
Q1
What element is found in all acids?
🎯 Bihar Police SI Main Examination, 2023
📘 Metallurgy📚 Metals and Their Ores
Q2
Which ore is extracted from the 'Badam Pahar' mines in Odisha?
🎯 Bihar Police SI Main Examination, 2023
📘 Physical States of Matter and Their properties📚 Bose Einstein Condensate
Q3
What is the state of kinetic energy in a Bose-Einstein condensate?
🎯 Bihar Police SI Main Examination, 2023
📘 Chemical Reactions📚 Exothermic Reaction
Q4
For the exothermic reaction 2SO2 + O2 ⇌ 2SO3, which conditions favor the forward reaction?
🎯 Bihar Police SI Main Examination, 2023
📘 Classification of Matter on the basis of Chemical Properties- I📚 Pure Substance- Compound
Q5
Which of the following statements is false?
🎯 Bihar Police SI Main Examination, 2023
📘 Acids, Bases and Salts📚 Types of Indicators- Natural, Synthetic and Olfactory Indicators
Q6
Regarding the indicator methyl orange, which of the following statements is true?
🎯 Bihar Police SI Main Examination, 2023
📘 Atomic Models📚 Niels Bohr's Atomic Model
Q7
What is the change in angular momentum when an electron in a hydrogen atom jumps from the first orbit to the second?
🎯 Bihar Police SI Main Examination, 2023
📘 Metallurgy📚 Alloys and Their compositions
Q8
Bronze medal is a mixture of-
🎯 Bihar Police SI Exam (17/12/2023, Shift-I)
📘 Solution📚 Colloid and its types
Q9
Alum cleans muddy water by which process?
🎯 Bihar Police SI Exam (17/12/2023, Shift-I)
📘 Important Chemical Compounds📚 Sulphuric Acid
Q10
What does copper turning liberate on heating with conc H2SO4?
🎯 Bihar Police SI Exam (17/12/2023, Shift-I)
📘 Periodic Properties📚 Electronegativity
Q11
In the following elements, the least electronegativity is of:
🎯 Bihar Police SI Exam (17/12/2023, Shift-I)
📘 Separation of Mixtures📚 Misc
Q12
Which of the following is a method to separate immiscible liquids?
🎯 Bihar Police SI Exam (17/12/2023, Shift-I)
📘 Organic Chemistry📚 Misc
Q13
Which of the following is non-reducing sugar?
🎯 Bihar Police SI Exam (17/12/2023, Shift-I)
📘 Polymer📚 Nylon
Q14
Which of the following polymer is formed by condensation polymerization mechanism?
🎯 Bihar Police SI Exam (17/12/2023, Shift-II)
📘 Environmental Chemistry📚 Ozone Depletion
Q15
Which one of the following gas is harmful for the Ozone layer?
🎯 Bihar Police SI Exam (17/12/2023, Shift-II)
📘 Corrosion📚 Copper Corrosion
Q16
Copper objects lose their shine and form green coating of-
🎯 Bihar Police SI Exam (17/12/2023, Shift-II)
📘 Phase Changing Processes and Their Factors📚 Deposition
Q17
Change of gaseous state directly to solid state without going through liquid state is called-
🎯 Bihar Police SI Exam (17/12/2023, Shift-II)
📘 Important Chemical Compounds📚 Washing Soda
Q18
Name the sodium compound, which is used for softening hard water.
🎯 Bihar Police SI Exam (17/12/2023, Shift-II)
📘 Chemistry in Everyday Life📚 Medicines (Antacids, Analgesics, etc.)
Q19
The most widely used antipyretic is-
🎯 Bihar Police SI Exam (17/12/2023, Shift-II)
📘 Phase Changing Processes and Their Factors📚 Boiling or Vaporization
Q20
The boiling point of water in Celsius is-
🎯 Bihar Police SI (Prohibition) Preliminary Exam 2023