Periodic Classification of Elements NEET Questions. We covered all the Periodic Classification of Elements NEET Questions in this post for free so that you can practice well for the exam.
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MCQ on Periodic Classification of Elements for NEET Students
The long form of the Periodic Table is based on
(a) electronegativity
(c) the shape of the atom
(d) atomic number
Option d – atomic number
Out of the four blocks in which the periodic table is divided, helium belongs to which block?
(a) s-block
(b) p-block
(c) d-block
(d) f-block
Option b – p-block
The horizontal rows and the vertical columns in the periodic table are termed respectively.
(a) Periods, groups
(b) Groups, periods
(c) Series, periods
(d) Family, periods
Option a – Periods, groups
Elements having similar outer shell electronic configurations in their atoms are arranged in
(a) groups
(b) vertical columns
(c) families
(d) All of these
Option d – All of these
According to IUPAC, the total number of groups and periods in the periodic table respectively are
(a) 16,9
(b) 18, 7
(c) 18,9
(d) 13,7
Option b – 18, 7
Multiplication of equivalent weight and valency of an element is equal to …….
(a) density
(b) relative temperature
(c) atomic weight
(d) atomicity
Option c – atomic weight
Which one of the following properties changes with valency?
(a) Atomic weight
(b) Equivalent weight
(c) Molecular weight
(d) Density
Option b – Equivalent weight
Which of the following types of elements show variable valency?
(a) Transition elements
(b) s-block elements
(c) f-block elements
(d) Both (a) and (c)
Option d – Both (a) and (c)
The ionization potential of nitrogen is
(a) the same as that of oxygen.
(b) less than that of oxygen.
(c) greater than that of oxygen.
(d) None of the above
Option c – greater than that of oxygen
Which one of the following represents the correct order of electron releasing tendency of metals?
(a) Zn > Cu > Ag
(b) Ag> Cu > Zn
(c) Cu > Zn> Ag
(d) Cu > Ag > Zn
Option a – Zn > Cu > Ag
Which one of the following is not a periodic property i.e., does not show any trend on moving from one side to the other in the Periodic Table?
(a) Atomic size
(b) Valency
(c) Radioactivity
(d) Electronegativity
Option c – Radioactivity
In Mendeleev’s periodic table, iodine with a lower atomic weight than that of tellurium was placed along with
(a) iron, cobalt, and nickel
(b) fluorine, chlorine, and bromine
(c) oxygen, sulfur, and selenium
(d) carbon, silicon, and germanium
Option b – fluorine, chlorine, and bromine
Consider the following statements, I. In Mendeleef’s periodic table, the position of the isotopes was not fixed. II. In the 19th century, Mendeleef propounded periodic law based on atomic mass. Which of the above statement(s) is/are correct?
(a) Only I
(b) Only II
(c) Both I and II
(d) Neither of them
Option c – Both I and II
How many elements are there in the 5th Period of the Modern Periodic Table?
(a) 2
(b) 8
(c) 18
(d) 36
Option c – 18
Which group of Periodic Tables contains no metal?
(a) IA
(b) III A
(c) VII A
(d) VII B
Option c – VII A
The elements of the group in the Periodic table
(a) have similar chemical properties.
(b) have consecutive atomic numbers.
(c) are isobars.
(d) are isotopes.
Option a – have similar chemical properties
All the elements in a group in the Periodic Table have the same
(a) atomic weight
(b) number of valences electrons
(c) atomic number
(d) None of the above
Option b – number of valences electrons
Which of the following is not a noble gas?
(a) Neon
(b) Hydrogen
(c) Helium
(d) Argon
Option b – Hydrogen
Periodic classification of elements can be done on the basis of electronic configuration and is used to examine the
(a) periodic trends in the physical properties of elements.
(b) periodic trends in chemical properties of elements.
(c) Both (a) and (b)
(d) None of the above
Option c – Both (a) and (b)
Johann Dobereiner gave the idea of trends among physical and chemical properties of several groups of three elements, the relationship referred to as
(a) the law of Triads.
(b) law of Dobereiner.
(c) law of Octaves.
(d) law of Duet.
Option a – the law of Triads
Chemical properties of elements, according to Lothar Meyer, are the periodic function of their
(a) valency
(b) atomic number
(c) atomic weight
(d) atomic size
Option c – atomic weight
In a periodic table, while moving from left to right in a period, the number remains the same.
(a) electrons
(b) protons
(c) shells
(d) neutrons
Option c – shells
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