[{"id":160947,"question":"Benzene is stable to:","choices":[{"text":"Oxidation","value":"A"},{"text":"Nitration","value":"B"},{"text":"KMnO<sub>4</sub>","value":"C"},{"text":"SULPHONATION","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":152885,"question":"Formation of a cation is:","choices":[{"text":"Exothermic process","value":"A"},{"text":"Non-endothermic process","value":"B"},{"text":"Endothermic process","value":"C"},{"text":"None of above","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":152881,"question":"An ion bearing positive charge is called:","choices":[{"text":"Cation","value":"A"},{"text":"Positron","value":"B"},{"text":"Anion","value":"C"},{"text":"None of above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":152880,"question":"A species having positive or negative charge is called:","choices":[{"text":"Electron","value":"A"},{"text":"Ion","value":"B"},{"text":"Proton","value":"C"},{"text":"Atom","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":152879,"question":"Which statement about molecule is incorrect ?","choices":[{"text":"Molecules of a substance are similar","value":"A"},{"text":"Hemoglobin is a homo atomic molecules","value":"B"},{"text":"Oxygen molecule is a macro molecule","value":"C"},{"text":"It exist independently","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":152877,"question":"Which statement about an atom is true ?","choices":[{"text":"The number of neutrons is not equal to number of electrons","value":"A"},{"text":"Mass number is less than atomic number","value":"B"},{"text":"All the elements have only one mass number","value":"C"},{"text":"Mass number can be equal to atomic number","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":152875,"question":"In molecules kinetic and potential energies are:","choices":[{"text":"Definite","value":"A"},{"text":"Moderate","value":"B"},{"text":"Indefinite","value":"C"},{"text":"None of above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":152873,"question":"Molecules of High molecular weight usually greater than 10,000 are called:","choices":[{"text":"Macro molecules","value":"A"},{"text":"Mega molecules","value":"B"},{"text":"Poly molecules","value":"C"},{"text":"Gega molecules","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":152870,"question":"Hemoglobin contains nearly:","choices":[{"text":"10,000 atoms","value":"A"},{"text":"100 atoms","value":"B"},{"text":"1000 atoms","value":"C"},{"text":"1 atom","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":152868,"question":"Hemoglobin is 68000 times heavier than:<div><br></div>","choices":[{"text":"Oxygen atom","value":"A"},{"text":"Nitrogen atom","value":"B"},{"text":"Carbon atom","value":"C"},{"text":"Hydrogen atom","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":152863,"question":"<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;\">NH<sub>3</sub>, HCL, H<sub>2</sub>O, HL are:</span>","choices":[{"text":"<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>","value":"A"},{"text":"<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>","value":"B"},{"text":"<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;\">Mono-atomic molecules</span><b><o:p></o:p></b></p>","value":"C"},{"text":"<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>","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":152860,"question":"He Ar and Ne are:","choices":[{"text":"<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>","value":"A"},{"text":"<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>","value":"B"},{"text":"<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>","value":"C"},{"text":"<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>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":152857,"question":"CL<sub>2</sub>, N<sub>2</sub> and O<sub>2 are:</sub>","choices":[{"text":"<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>","value":"A"},{"text":"<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>","value":"B"},{"text":"<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>","value":"C"},{"text":"<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>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":152855,"question":"C<sub>6</sub>H<sub>12</sub>O<sub>6</sub>and C<sub>12</sub>H<sub>22</sub>O<sub>11</sub> are:","choices":[{"text":"Mono-atomic molecules","value":"A"},{"text":"Diatomic molecules","value":"B"},{"text":"Poly-atomic molecules","value":"C"},{"text":"<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>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":152851,"question":"The number of subatomic particles in atoms sidcovered is more than:","choices":[{"text":"110","value":"A"},{"text":"100","value":"B"},{"text":"125","value":"C"},{"text":"90","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":152848,"question":"Atoms can be evident by use of electron microscope, field ionization microscope and:","choices":[{"text":"x-rays","value":"A"},{"text":"Video camera<div><br></div>","value":"B"},{"text":"Telescope","value":"C"},{"text":"Compound microscope","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":152847,"question":"Determination of atomic masses and invention of system of writing symbols was made by:","choices":[{"text":"J. Berzelius","value":"A"},{"text":"Democritus","value":"B"},{"text":"Dalton","value":"C"},{"text":"None of above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":152846,"question":"First atomic theory was put forward by an English school teacher:","choices":[{"text":"Maxewell","value":"A"},{"text":"Newton","value":"B"},{"text":"Sanger","value":"C"},{"text":"John Dalton","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":152844,"question":"<p class=\"MsoNormal\">Metal tend to lose electrons, becoming:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">Metals<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">Positively charged<o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">Negatively charged<o:p></o:p></p>","value":"C"},{"text":"<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>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":152841,"question":"<span style=\"font-size:11.0pt;line-height:107%;\r\nfont-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:\r\nCalibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;\r\nmso-bidi-font-family:&quot;Times New Roman&quot;;mso-bidi-theme-font:minor-bidi;\r\nmso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA\">Atoms\r\nand molecules can either gain or lose electrons, forming charge particles\r\ncalled:</span>","choices":[{"text":"<p class=\"MsoNormal\">Positrons<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">Photons<o:p></o:p></p>","value":"B"},{"text":"<p class=\"MsoNormal\">Ions<o:p></o:p></p>","value":"C"},{"text":"<p class=\"MsoNormal\">Electrons<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":152839,"question":"<p class=\"MsoNormal\">Covalent compound s mostly exist in the form of:<o:p></o:p></p>","choices":[{"text":"<p class=\"MsoNormal\">Protons<o:p></o:p></p>","value":"A"},{"text":"<p class=\"MsoNormal\">Atoms<o:p></o:p></p>","value":"B"},{"text":"<span style=\"font-size:11.0pt;line-height:107%;\r\nfont-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:\r\nCalibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;\r\nmso-bidi-font-family:&quot;Times New Roman&quot;;mso-bidi-theme-font:minor-bidi;\r\nmso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA\">Neutrons</span>","value":"C"},{"text":"<p class=\"MsoNormal\">Molecules<o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":152835,"question":"<p class=\"MsoNormal\">The diameter of atoms is of the order:<o:p></o:p></p>","choices":[{"text":"2* 10<sup>-5</sup>m","value":"A"},{"text":"<p class=\"MsoNormal\">2* 10<sup>-10 </sup>m<sup><o:p></o:p></sup></p>","value":"B"},{"text":"2* 10<sup>-2</sup>m","value":"C"},{"text":"2* 10<sup>-3</sup>m","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":152834,"question":"CO+ is an example of","choices":[{"text":"Stable molecule","value":"A"},{"text":"Anionic molecule ion","value":"B"},{"text":"Cationic molecular ion","value":"C"},{"text":"Free radical","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":152833,"question":"When an electron is added to a uni positive ion we get:","choices":[{"text":"Cation","value":"A"},{"text":"Molecule","value":"B"},{"text":"Neutral atom","value":"C"},{"text":"Anion","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":152832,"question":"The number of atoms present in molecule determines its:","choices":[{"text":"Molecularity","value":"A"},{"text":"Atomicity","value":"B"},{"text":"Basicity","value":"C"},{"text":"Acidity","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":152830,"question":"Matter is defined as any thing which occupies space and:","choices":[{"text":"Molecules","value":"A"},{"text":"Mass","value":"B"},{"text":"Compound","value":"C"},{"text":"Molecules","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":152827,"question":"Smallest particle of an element which may or may not have independent existence is known as:","choices":[{"text":"A molecule","value":"A"},{"text":"An ion","value":"B"},{"text":"An atom","value":"C"},{"text":"An electron","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":152826,"question":"The branch of science dealing with structure, composition and changes in matter and laws and principles which govern these changes is called as","choices":[{"text":"chesmistry","value":"A"},{"text":"Geology","value":"B"},{"text":"Physics","value":"C"},{"text":"Mechanics","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":152820,"question":"Isotopes differ in","choices":[{"text":"properties which depend upon mass","value":"A"},{"text":"arrangement of electrons in orbitals","value":"B"},{"text":"chemical properties","value":"C"},{"text":"the extent to which they may be affected in electric fields","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":119427,"question":"The number of isotopes of gold is","choices":[{"text":"3","value":"A"},{"text":"1","value":"B"},{"text":"2","value":"C"},{"text":"4","value":"D"},{"value":"E"}],"correctAnswer":2}]