THE P-BLOCK ELEMENTS Quiz-1

The P-Block Quiz-1

Dear Readers,

IIT JEE exam which consists of JEE Main and JEE Advanced is one of the most important entrance exams for engineering aspirants. The exam is held for candidates who are aspiring to pursue a career in the field of engineering and technical studies. Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything..

Q1. Which of the following arrangements does not truly represent the property indicated against it?

•  Br₂ < Cl₂ < F₂ : Oxidising power
• Br < Cl < F : Electronegativity
•  Br < F < Cl : Electron Affinity  
•  Br₂ < Cl₂ < F₂ : Bond Energy

Solution
(d) F₂ < Br₂ < Cl₂ 

Q2. Consider the following reactions in which atoms have been labelled  with isotopes (indicated by *)

•  I
•  II
•  Both I and II
•  None of these

Solution 

(b) II

Q3  What does Green Chemistry in terms of environment mean?

• Green house effect
•  Reactions related to depletion of ozone layer
•  Photosynthetic reactions in plants
•  Reduction in the use and production of hazardous chemicals

Solution

(d) Reduction in the use and production of hazardous chemicals

Q4. The number of S-S bonds in sulphur trioxide trimer, (S₃ O₉) is

Three

 Two

 One

 Zero

Solution

(d) Zero

Q5.Extra pure N₂ can be obtained by heating

•  NH₃ with CuO
•  NH₄ NO₃
•  (NH₄)₂ Cr₂O₇
•  Ba(N₃)₂

Solution

(d)  Ba(N₃)₂

Q6. Which of the following is not a chalcogen?

• Se
•  O
• S
•  Na

Solution
(d) Na

      Oxygen family elements (O, S, Se, Te, Po) are called chalcogen

Q7. Select the correct statements

•  Helium has the lowest melting and boiling point 
•  Helium can diffuse through rubber, PVC and even glass
•  Ar , Kr and Xe form clathrate
•  All the above are correct statements

Solution

(d) All the above are correct statements

Q8. Select the correct statement(s) 

•  Cl₂O and ClO₂ are used as bleaching agents and as germicides
•  I₂O₅ is used in the quantitative estimation of CO
•  Bond angle XOX varies in the order FOF < ClOCl < BrOBr
•  All of the above are correct statements

Solution

(d) All the above are correct statements

Q9. Chlorine Dioxide

•  Is paramagnetic in nature
•  Has odd-electron bond
•  Is stable
•  Has all the above properties true

Solution

(d) Has all the above properties true

Q10.  Of the following acids

           I. Hypophosphorous acid

          II. Oxalic acid

          III. Glycine

•  I, II are monobasic, III dibasic and amphoteric
•  II monobasic, I dibasic acid, III amphoteric
•  I monobasic, II dibasic, III amphoteric
•  I, II dibasic, III amphoteric

Solution

(c) I monobasic, II dibasic, III amphoteric