Chemistry MCQs

Page No. 39

Which ion will have maximum value of heat of hydration ?


aAl+3


bCs+


cBa+


dMg+2


View Answer Al+3

Electrolysis of dilute solution of NaCl results at the anode_______________?


asodium


bhydrogen


cchlorine


doxygen


View Answer oxygen

Carnalite has chemical formula__________________?


aKCl


bKCI.MgCl2.6H2O


cNa2B4O7.10H2O


dCaCO3.MgCO3


View Answer KCI.MgCl2.6H2O

NaOH is named as caustic soda because________________?


aIt corrodes the organic tissues


bIt is used in soda water


cIt reacts with chlorine gas


dIt reacts with fats to form soap



First ionization potential of alkaline earth metal is greater than alkali metals because___________________?


aThey are more reactive


bThey have greater atomic radii


cThey have smaller atomic sizes


dAll



Alkali and alkaline earth metals impart colours when heated over burner. It is due to______________?


aSmaller electronegativity of alkali metals


bSmaller ionic radius of these metals


cDe-excitation of electrons from higher energy levels to low energy level


dExcitation of electrons from low energy levels to higher energy levels



In diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?


aHydroxide ions to reach anode


bChlorine gas to mix


cCathode to decay


dAll of the above



The deliquescence is a property in which a solid____________________?


aAbsorbs moisture and remains solid


bAbsorbs moisture and turns to liquid form


cLoses water of crystallization


dIncreases the number of water of crystallization



Which one of the following gives white precipitate with aqueous solution of BaCl2?


aNaHCO3


bNaNO3


cNa2CO3


dNa2CrO4


View Answer Na2CO3

Crystals of Na2CO3. 10H2O when exposed to air_________________?


aLose water and remain solid


bGain water and remain solid


cGain water and become liquid


dRemains unchanged



Goto Page No.

Page 39 of 119

Alphabetical MCQs Categories

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan