PPSC Chemistry Part III Inorganic Chemistry Online Test With Answers

image
image
image

PPSC Chemistry Part III Inorganic Chemistry Online Test

Sr. # Questions Answers Choice
1 Principal constituents of noble gases is Argon Neon Xenon Helium
2 Zero group elements are called as Inert gases Rare gases Noble gases All of above
3 Zero group of the periodic table consists of. Four elements Five elements Six elements Eight elements
4 The structure of SO2 Linear Angular V-shaped Planner
5 The formula of sulphur sequioxide SO4 S2O7 S2O3 SO3
6 Electronegativity of Oygen is. 2.5 3.5 2.4 2.1
7 Group IV A consist of elements. 3 4 5 6
8 The correct increasing order of bond dissociation energy for N2, O2, F2 and Cl2 is N2 < O2 < F2 < Cl2 F2 < Cl2 < O2 < N2 F2 < Cl2 < N2 < O2 N2 < Cl2 < F2 < O2
9 Fluorine does not show variable oxidation state because of. its high electronegativity Its small sixe low dissociation energy of F-F bond Non availability of d-orbitals
10 Halogens are coloured because. They are strong oxidant Their molecules are held together by weak van der Waals forces Their atoms absorb radiations form visible range causing the excitation of valence electrons to higher energy of levels Their molecules absorb light radiation forming the oxcited state.
11 Which can be purified by sublimation F2 Cl2 Be2 I2
12 What element is the most abundant by mass in the Earth's crust. Fe H O K
13 Which of the following is the active ingredient in ordinary household bleach. HCl Cl2 NaCl NaCIO
14 Which of the following halogen exist in solid state. F2 I2 Cl2 Br2
15 HCIO4, HNO3 and HCL are all strong acids in aqueous solution inglacial acetic acid medium, their acid strength is such that. HCIO4 > HCL > HNO3 HNO3 > HCIO4 > HCl HCl > HCIO4 > HNO3 HCl > HCIO4 > HNO3
16 Which of the following is a pseudohalide. I3- IF7 CN- ICI
17 Pick out the incorrect statement for CIF3 It has trigonal planar geometry It is used to make gaseous UF6 which is useful in making enriched U-235 fuel It is used as powerful fluorinating agent for inorganic compounds CIF2 has been used as fuel in short range rockets reating with hydrazine.
18 The following oxo acids have been arranged in the order decreasir acid strength identify the correct order. III > IV > II > I III > II > I >IV I > II >III > IV IV > III > II > I
19 Which of the following has the maximum ionic character. HF HCl HI HBr
20 Which of the following compounds has highest boiling point. HI HF HBr HCl
Download This Set

Is this page helpful?

×