Metals and non metals Worksheet-7
Multiple-Choice Question (One Option Correct):
(A) Mg > Cu > Na > Zn > Fe > Pb > Ca
(B) Na > Zn > Fe > Pb > Cu > Mg > Ca
(C) Na > Mg > Ca > Zn > Fe > Cu
(D) Zn > Fe > Na > Mg > Ca > Cu > Pb
(A) Acidic (B) Basic (C) Neutral (D) Both A and c
(A) They are electronegative
(B) They are electropositive
(C) Reaction of non-metals with water is an endothermic reaction
(D) They cannot give electrons to reduce Hydrogen ions of water
(E) A & D
(F) B & D
(A) Chlorine is more reactive so it is released out as chlorine gas.
(B) Bromine is more reactive so it is displacing chlorine from its salt solution.
(C) Given reaction equation is wrong.
(D) Bromine is less reactive than chlorine and it cannot displace chlorine from its salt solution.
(E) Both C and D
(F) Both A and B
(A) Sodium reacts with oxygen easily to form sodium oxide but copper does not react with oxygen easily.
(B) Sodium reacts with dilute acids evolving hydrogen gas where as copper does not.
(C) Reaction of sodium with water is vigorous.
(D) Copper is present below Hydrogen in the reactivity series.
(E) All of these
(A) Calcium (B) Carbon (C) Silicon (D) Iron
(A) 14 (B) 18 (C) 17 (D) 19
(A) 9 (B) 7 (C) 8 (D) 10
(A) x – cation, y-cation
(B) x – anion , y-cation
(C) x – cation, y-anion
(A) Covalent bond
(B) Ionic bond
(C) Ionic in solution form and covalent in vapour phase.
(D) Covalent in solution form and ionic in vapour phase.
(A) 2Ca + O2 → 2CaO Calcium oxide dissolves in water calcium hydroxide.
(C) X-Atomic number-20 E.fg-2,8,8,2 there are 2 electrons in the valence shell, so it forms cations. The element is calcium Y-Atomic number-15 E.fg-2,8,5 there are 5 electrons in the valence shell ,so it forms anion. The element is phosphorous
(A) A X-atomic number-13-E.Fg-2,8,3 the element is Aluminium Y-atomic number-6-E.fg- 2,4 the element is Oxygen