ECAT Chemistry MCQ's Test For Full Book With Answers

ECAT Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 CL2, N2 and O2 are: <p class="MsoNormal"><span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">Diatomic molecules</span><o:p></o:p></p> <p class="MsoNormal"><span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">Heter</span>o atomic molecules<o:p></o:p></p> <p class="MsoNormal"><span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">Poly-atomic molecules</span><o:p></o:p></p> <span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">Mono-atomic molecules</span>
2 C6H12O6and C12H22O11 are: Mono-atomic molecules Diatomic molecules Poly-atomic molecules <p class="MsoNormal"><span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">Heter</span>o atomic molecules<o:p></o:p></p>
3 The number of subatomic particles in atoms sidcovered is more than: 110 100 125 90
4 Atoms can be evident by use of electron microscope, field ionization microscope and: x-rays Video camera<div><br></div> Telescope Compound microscope
5 Determination of atomic masses and invention of system of writing symbols was made by: J. Berzelius Democritus Dalton None of above
6 First atomic theory was put forward by an English school teacher: Maxewell Newton Sanger John Dalton
7

Metal tend to lose electrons, becoming:

 <p class="MsoNormal">Metals<o:p></o:p></p> <p class="MsoNormal">Positively charged<o:p></o:p></p> <p class="MsoNormal">Negatively charged<o:p></o:p></p> <p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: normal;"> (a)</span><span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: &quot;Times New Roman&quot;;"></span><!--[endif]-->And (c)<o:p></o:p></p>
8 Atoms and molecules can either gain or lose electrons, forming charge particles called: <p class="MsoNormal">Positrons<o:p></o:p></p> <p class="MsoNormal">Photons<o:p></o:p></p> <p class="MsoNormal">Ions<o:p></o:p></p> <p class="MsoNormal">Electrons<o:p></o:p></p>
9

Covalent compound s mostly exist in the form of:

 <p class="MsoNormal">Protons<o:p></o:p></p> <p class="MsoNormal">Atoms<o:p></o:p></p> <span style="font-size:11.0pt;line-height:107%; font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin; mso-bidi-font-family:&quot;Times New Roman&quot;;mso-bidi-theme-font:minor-bidi; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Neutrons</span> <p class="MsoNormal">Molecules<o:p></o:p></p>
10

The diameter of atoms is of the order:

 2* 10<sup>-5</sup>m <p class="MsoNormal">2* 10<sup>-10 </sup>m<sup><o:p></o:p></sup></p> 2* 10<sup>-2</sup>m 2* 10<sup>-3</sup>m
11 CO+ is an example of Stable molecule Anionic molecule ion Cationic molecular ion Free radical
12 When an electron is added to a uni positive ion we get: Cation Molecule Neutral atom Anion
13 The number of atoms present in molecule determines its: Molecularity Atomicity Basicity Acidity
14 Matter is defined as any thing which occupies space and: Molecules Mass Compound Molecules
15 Smallest particle of an element which may or may not have independent existence is known as: A molecule An ion An atom An electron
16 The branch of science dealing with structure, composition and changes in matter and laws and principles which govern these changes is called as chesmistry Geology Physics Mechanics
17 Isotopes differ in properties which depend upon mass arrangement of electrons in orbitals chemical properties the extent to which they may be affected in electric fields
18 The tip of the funnel should touch the side of the beaker in order to avoid Splashing Leakage Mixing Contamination
19 The tip of funnel should be 1 or 2cm larger than the circle of the Beaker Solid Filter paper Liquid
20 The filtration process is used to separate solid from Liquid Gas Solid All of above
21 The solid remained on filter paper during filtration is called the Substance Residue Undue Filtrate
22 The sample being analyzed is called Electrolyte Substance Analyte All of above
23 The detection of functional group is called Numerical analysis Qualitative analysis Combustion analysis Quantitative analysis
24 Identification of a substance, determination of its structure and quantitative analysis of its composition are the aspects covered by Modern analytical physics Mechanical chemistry Biochemistry Modern analytical chemistry
25 Estimation of Na in sea water is an example of Numerical analysis Qualitative analysis Quantitative analysis None of above
26 A complete chemical characterization of a compound must include Qualitative analysis Chemical analysis Quantitative analysis Both a and c
27 Analytical chemistry is the science of Chemical characterization Physical characterization Biological characterization Biochemical characterization
28 Arenes are also called atom hydrocarbons aromatic benzene
29 Which term was derived from atomos? atom hydrocarbon aromatic aliphatic
30 Which terms was derived from " aroma"? atom hydrocarbons aromatic aliphatic
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