KCET 2026 | Periodic Table and Periodicity Question 1 | Chemistry

List-I (Element-Atomic number)		List-II (Position in periodic table)
(a)	Ra – 88	(i)	$4^{th}$ period, $13^{th}$ group
(b)	Ga – 31	(ii)	$6^{th}$ period, $6^{th}$ group
(c)	W – 74	(iii)	$5^{th}$ period, $10^{th}$ group
(d)	Pd – 46	(iv)	$7^{th}$ period, $2^{nd}$ group

Choose the correct answer from the options given below.

a-iv, b-i, c-ii, d–iii

a-i, b-ii, c-iii, d-iv

a-iv, b-ii, c-iii, d–i

a-iii, b-iv, c-i, d-ii

KCET 2025

MCQ (Single Correct Answer)

-0

$$ \text { Given below and the atomic masses of the elements: } $$

$$ \begin{array}{|l|l|l|l|l|l|l|l|l|l|} \hline \text { Element: } & \mathrm{Li} & \mathrm{Na} & \mathrm{Cl} & \mathrm{~K} & \mathrm{Ca} & \mathrm{Br} & \mathrm{Sr} & \mathrm{I} & \mathrm{Ba} \\ \hline \text { Atomic Mass }\left(\mathrm{g} \mathrm{~mol}^{-1}\right): & 7 & 23 & 35.5 & 39 & 40 & 80 & 88 & 127 & 137 \\ \hline \end{array} $$

$$ \text { Which of the following doesn't form triad? } $$

$\mathrm{Ba}, \mathrm{Sr}, \mathrm{Ca}$

$\mathrm{Cl}, \mathrm{Br}, \mathrm{I}$

$\mathrm{Cl}, \mathrm{K}, \mathrm{Ca}$

$\mathrm{Li}, \mathrm{Na}, \mathrm{K}$

KCET 2023

MCQ (Single Correct Answer)

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The correct order of first ionisation enthalpy of given elements is

$$\mathrm{Li}<\mathrm{B}<\mathrm{Be}<\mathrm{C}$$

$$\mathrm{Be < Li < B < C}$$

$$\mathrm{C}<\mathrm{B}<\mathrm{Be}<\mathrm{Li}$$

$$\mathrm{Li}<\mathrm{Be}<\mathrm{B}<\mathrm{C}$$

KCET 2023

MCQ (Single Correct Answer)

-0

A pair of amphoteric oxides is

$$\mathrm{Al}_2 \mathrm{O}_3, \mathrm{Li}_2 \mathrm{O}$$

$$\mathrm{BeO}, \mathrm{BO}_3$$

$$\mathrm{BeO}, \mathrm{MgO}$$

$$\mathrm{BeO}, \mathrm{ZnO}$$

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Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Atomic Structure States of Matter Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics Nuclear Chemistry

Inorganic Chemistry

Periodic Table and Periodicity Chemical Bonding and Molecular Structure Metallurgy Hydrogen and It's Compounds s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Salt Analysis Environmental Chemistry

Organic Chemistry

IUPAC Nomenclatures General Organic Chemistry Isomerism Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehyde and Ketone Carboxylic Acids and Its Derivatives Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry