An element with the largest atomic radius among the following is: (a) Carbon (b) Nitrogen (c) Lithium (d) Beryllium

An atom of X forms an ion according to the equation X ⟶ X+2. The atomic number of the atom X is: (a) 16 (b) 10 (c) 12 (d) 14

Neon has the maximum ionization potential because its outermost shell is: (a) Unstable (b) Ready to accept electrons (c) Ready to lose electrons (d) Completely filled

The electronic configuration of an element is 2,8,2. The hydroxide of this element can produce ............... hydroxyl ions per molecule. (a) 3 (b) 2 (c) 1 (d) 0

Electron affinity is maximum in: (a) Magnesium (b) Argon (c) Lithium (d) Bromine

Fill in the blanks with the choices given in the brackets: (a) Metals are good ............... [oxidizing agents /reducing agents] (b) Non-polar covalent compounds are ............... [good / bad] conductors of heat and electricity. (c) Higher the pH value of a solution, the more is ............... [acidic / alkaline] it is. (d) ............... [Silver chloride / Lead chloride] is a white precipitate that is soluble in excess of Ammonium hydroxide solution. (e) Conversion of ethene to ethane is an example of ............... . [hydration / hydrogenation]

Arrange the following as per the instruction given in the brackets: (a) Al, K, Mg, Ca (decreasing order of its reactivity) (b) N, Be, O, C (increasing order of non-metallic character) (c) P, Si, F, Be (decreasing order of valence electrons)

State the terms/process for the following: (a) The energy released when an atom in the gaseous state accepts an electron to form an anion. (b) Tendency of an element to form chains of identical atoms. (c) The name of the process by which Ammonia is manufactured on a large scale. (d) A type of salt formed by partial replacement of hydroxyl radicals with an acid radical. (e) The ratio of the mass of a certain volume of gas to the same volume of hydrogen measured under the same conditions of temperature and pressure.

Give a reason for each: (a) Ionisation potential decreases down a group. (b) Ionic compounds do not conduct electricity in the solid state.

X, Y & Z are three metallic atoms in successive order belonging to the same group such that atomic radii of ‘X’ is the smallest. Which of the three atoms is the best reducing agent? (a) X (b) Y (c) Z (d) All three have the same reducing power

Assertion (A): The tendency of losing electrons increases down the Group. Reason (R): The most reactive metal is placed at the top of Group 1. (a) Both (A) and (R) are true, and (R) is the correct explanation of (A). (b) Both (A) and (R) are true, and (R) is not the correct explanation of (A). (c) (A) is true but (R) is false. (d) (A) is false but (R) is true.

Given below are four ions: Cl−, Li+, Al3+, K+ Identify the pair of ions which have the same electronic configuration. [Atomic number: Cl = 17, Li = 3, Al = 13, K = 19] (a) Cl− & Li+ (b) Al3+ & K+ (c) Cl− & K+ (d) Li+ & K+