PPSC Chemistry Full Book Test With Answers

image
image
image

PPSC Chemistry Full Book Test

Sr. # Questions Answers Choice
1 Drying agent which react with CO2 and removes water vapours is. CaO CaCl2 CaCO3 Ca(NO3)2
2 Which element amongst the following has the highest boiling point. Na Mg Ca K
3 Metallic magnesium is obtained by Reduction of MgO with Coke Electrolysis of an aqueous solution of MgCl2 Electrolysis of molten MgCl2 Displacement of magnesium by iron form MgCl2 solution.
4 Which of the following elements has the highest value of IE. Na K Mg Ca
5 Which of the following is strongest reducing agent. Be Mg Ca Sr
6 Which of the elements of group II A has the highest value of IE. Mg Be Ca Sr
7 Which of the following alkaline earth metals occurs in radioactive form in nature. Ca Mg Ra Ba
8 Which of the following is the most abundant alkaline earth metal. Be Mg Ca Sr
9 Which of the following elements has the highest melting point. Magnesium Calcium Strontium Berylliium
10 Which of the following has the maximum tendency to form complexes. K Na Rb Li
11 Which of the following is the weakest base. KOH NaOH LiOH RbOH
12 Which of the following compounds liberates CO2 on heating. Li2CO3 Na2CO3 K2CO3 All liberate CO2 on heating.
13 Which of the following reacts with excess oxygen to form a normal oxide. Li Na K Rb
14 Which among the following is least soluble in water. NaF LiF KF CsF
15 Which among the following is insoluble in water. LiOH KOH NaOH RbOH
16 Sodium reacts with excess of oxygen to form Na2O NaO2 Na2O2 NaO
17 Potassium reacts with excess of oxygen to form K2O K2O2 KO2 K2O3
18 The most reactive alkali metal among the following is Li Na Cs Rb
19 The alkali metal that react with nitrogen directly to form nitrides. Na K Rb Li
20 Sodium react more vigorously than lithium because. It is a metal It has higher atomic mass It is more electronegative It is more electropositive
21 Potassium crystallizes in a body centered lattice. Hence, the coordination number of potassium in potassium metal is. 4 6 8 12
22 Sodium metal cannot be stored under Hexane Benzene Kerosene Ethanol
23 The only oxidation state of alkali metals in their compounds is. +1 +2 -1 0
24 The colour imparted by lithium to the flame is. Golden yellow Grasay green Violet Red
25 Among alkali metals, the least metallic element is. Li Na Rb Cs
26 Lithium shows diagonal relationship with Beryllium Sodium Magnesium Calcium
27 The alkali metal with highest melting point is K Na Li Ca
28 The correct order of ionization energies of alkali metals is. Li > Na > K > Rb Na > K > Rb > Li Rb > K > Na > Li Rb > K > Li > Na
29 The lightest alkali metal is. Lithium Sodium Rubidium Caesium
30 Which of the following is not an alkali metal. Potassium Francium Sodium Strontium
Download This Set

Is this page helpful?

×