THE P-BLOCK ELEMENTS Quiz-13

The P-Block Quiz-13

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. Bleaching of a fabric cloth is done using A and excess of chlorine is removed using B is

•  CaOCl₂, Na₂SO₃
•  Na₂S₂O₃, CaOCl₂
•  CaCl₂, Na₂S₂O₃
•  CaOCl₂, Na₂S₂O₃

Solution

CaOCl₂, Na₂S₂O₃

Q2.Second most abundant element in the universe (after hydrogen) is

•  Al
•  Fe
•  He
•  Ne

Solution
He

Q3.  In the following

•  CSI₃ will ionize to give Cs⁺ and I_3^-
•  RbICl₂ will give RbCl and ICl
•  KBrICl will give KCl and IBr
•  All of the above are correct

Solution
All of the above are correct

Q4. Which is/are true statements?

•  Sulphur trioxide exists as cyclic trimer in solid state, S₃O₉
•  Selenium trioxide solid is a cyclic tetramer, Se₄O₁₂
•  TeO₃ is a solid with a network structure in which TeO₆ octahedra share all vertices
•  All of the above are correct

Solution
All of the above are correct

Q5.S₂O₃^2- has

•  S-S linkage
•  S-O linkage
•  Both (a) and (b)
•  None of these

Solution
Both (a) and (b)

Q6. Which of the underlined atoms in oxyacids have sp³ hybridised atoms?
Select the correct properties

•  HClO₄, H₂SO₄, HNO₂
•  H₂SO₄, H₃PO₄, HNO₃
• HClO₄,H₂SO₄,H₂SO₅
•  HClO₄,HNO₃,HClO₃

Solution
HClO₄,H₂SO₄,H₂SO₅

Q7. Select the correct statement(s) regarding behavior of HF as non- aqueous solvent

•  HCl behaves as an acid and HF as a base
•  HClO₄ behaves as a base and HF as an acid
•  HNO₃ and H₂SO₄ behave as base and HF as an acid
•  All of the above are correct statements

Solution
HNO₃ and H₂SO₄ behave as base and HF as an acid

Q8.Which one is the strongest bond?

•  Br-F
•  F-F
•  Cl-F
•  Br-Cl

Solution
Cl-F

Q9.Bleaching powder is disinfectant for purification of water when water born germs are killed. But disinfectant activity is destroyed. It is due to its disproportion into

•  CaCl₂ and Cl₂
•  CaCl₂ and Ca(ClO₃)₂
•  CaO and Cl₂
•  CaO, Cl₂ and CaCl₂

Solution
CaCl₂ and Ca(ClO₃)₂

Q10. The colour of the red glass in traffic signals is due to

•  Sb_2S3
•  HgI₂
•  CdS
• CdSe

Solution
CdSe