Chemistry - MOST IMPORTANT Allahabad HC ARO Previous Year Questions
Practice real questions from previous year exams of Allahabad HC ARO.
📘 Classification of Matter on the basis of Chemical Properties- I📚 Mixture (Impure substance)- Homogeneous and Heterogeneous
Q1
Liquids that form separate layers and do not mix are known as ___ .
🎯 Allahabad HC ARO 19/12/2021 Shift-II
📘 Separation of Mixtures📚 Sublimation
Q2
Camphor is purified by the process of :
🎯 Allahabad HC RO/ARO Exam-28/09/2014
📘 Structure of Atom📚 Electron
Q3
J.J. Thomson was awarded the "Nobel Prize" in physics in 1906 for the discovery of:
🎯 Allahabad HC ARO 15/12/2021 Shift-I
📘 Periodic Properties📚 Atomic Radius
Q4
The term atomic size refers to:
🎯 Allahabad HC ARO 19/12/2021 Shift-II
📘 Structure of Atom📚 Neutron
Q5
Neutron ______ .
🎯 Allahabad HC ARO 19/12/2021 Shift-II
📘 Structure of Atom📚 Isotopes
Q6
Which one of the following is not an isotope of hydrogen?
🎯 Allahabad HC ARO 15/12/2021 Shift-I
📘 Structure of Atom📚 Isotopes
Q7
Which of the following statement is incorrect about isotopes?
🎯 Allahabad HC ARO 19/12/2021 Shift-I
📘 Structure of Atom📚 Isobar
Q8
Which one of the following pairs are isobars ?
🎯 Allahabad HC ARO 20/12/2021 Shift-I
📘 Matter in Our Surroundings📚 General Facts
Q9
Which of the following sets of phenomena would increase on raising the temperature?
🎯 Allahabad HC RO/ARO Exam-28/09/2014
📘 Radioactivity📚 Applications of Radioactivity
Q10
In the following, which one is used to date the archaeological remains of wood, bone and shell?
🎯 Allahabad HC ARO 16/12/2021 Shift-I
📘 Radioactivity📚 Applications of Radioactivity
Q11
Which isotope is used in the nuclear power plants to generate electricity ?
🎯 Allahabad HC ARO 20/12/2021 Shift-I
📘 Electron Configuration📚 Valency
Q12
How many valence electrons are present in a sodium atom ?
🎯 Allahabad HC ARO 15/12/2021 Shift-I
📘 Electron Configuration📚 Valency
Q13
The combining capacity of an element is called
🎯 Allahabad HC ARO 19/12/2021 Shift-I
📘 Acids, Bases and Salts📚 Chemical Properties of Acids
Q14
Concentrated Nitric acid is an example of ___.
🎯 Allahabad HC ARO 19/12/2021 Shift-II
📘 Chemistry in Everyday Life📚 Medicines (Antacids, Analgesics, etc.)
Q15
Chemically antacids are ‐
🎯 Allahabad HC ARO 20/12/2021 Shift-I
📘 Chemistry in Everyday Life📚 Medicines (Antacids, Analgesics, etc.)
Q16
Which of the following types of medicines is used for treating indigestion?
🎯 Allahabad HC ARO 19/12/2021 Shift-II
📘 Important Chemical Compounds📚 Baking Soda
Q17
Which of the following is an example of a mild non‐corrosive basic salt?
🎯 Allahabad HC ARO 20/12/2021 Shift-I
📘 Acids, Bases and Salts📚 Physical Properties of Salt
Q18
The chemical name of common salt is :
🎯 Allahabad HC RO/ARO Exam-06/02/2011
📘 Acids, Bases and Salts📚 pH Scale
Q19
Which pH range is most suitable for life of fresh water plants and animals?
🎯 Allahabad HC ARO 19/12/2021 Shift-II
📘 Acids, Bases and Salts📚 pH Scale
Q20
Which of the following statements is not correct?
🎯 Allahabad HC ARO 14/12/2021 Shift-II