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Which one of the following gases is used for artificial ripening of fruits : Methane , Ethane , Ethene , Propane
Newspaper can be recycled again and again by how many times : 2, 3, 4, 5
Which of the following reagents will react with react with both aldehydes and ketones : Graignards reagent, Tollens reagent, Fehling reagent, Benedicts reagent
Chile saltpetre has the chemical formula : NaNO3, KNO2, Na2B4O7, Na2CO3H2O
Select from the following the one which is alcohol : CH3CH2OH, CH3OCH3, CH3COOH, CH3CH2Br
Grignard regent is reactive due to : The presence of halogen atom, The presence of Mg atom, The polarity of C -Mg bound, Presence of Alky
The chief ore of aluminium is : Na3AlF6, Al2O3.2H2O, Al2o3, Al2O3.H2O
Which is not Calcareous material : Lime, Clay, Marble, Marine shell
The reaction between fat and NaOh is called : Esterification, Hydrogenolysis, Fermentation , Saponification
Laughing gas is chemically : NO, N2O, NO2, N2O4
Which reagent is used to reduce a carboxylic group to an alcohol : H2/Ni, H2/Pt, NaBH4, H2/Pt
Which is the strongest acid : HClO, HClO2, HClO3, HClO4
Which enzyme is not involved in fermentation of starch : Diastase, Zymase, Urease, Invertase
Keeping in view the size of atoms, which order is the correct one : Mg > Sr, Ba > Mg, Lu > Ce, Cl > l
Which compound is the most reactive one : Benzane, Ethane , Ethene, Ethyne
Acetone react with HCN to form a cyanohydrin .it is an example : Electrophilic additation, Electrophilic Substitution, Nucleophilic addition, Nucleophilic Substituti
Coordination number of pt in [Pt cl(No2)4] is : 2, 4, 1, 6
Choose the correct statement : Na+ is smaller then Na atom, Na+ is the larger then na atom , Cl is the smaller then cl atom, Cl is
Chile saltpetre has the chemical formula : KNO2, NaNo3, Na2B4O7, Na2CO3
Aluminium oxide is : Acidic oxide, Basic oxide, Amphoteric oxide, None Of These
Laughing gas is chemically : No, NO2, N2o, N2O4
Which one is perchloric acid : HClO, HClO3, HClo2, HClO4
Which of the following is a non -typical transition element : Cr, Mn, Zn, Iron
Select from the following the one which is alcohol : CH3CH2OH, CH3CH3, CH3CH2OH, CH3-Cl
Beta -beta - dichlorethyl sulphide is commonly known as : Mustard gas, Laughing gas, Phosphene gas , Bio gas
Which compound is the most reactive one : Benzane, Ethane , Ethane , Ethyne
When CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is : Propane, Propanal, Propanol, Propanoic acid
Which compound show hydrogen bounding : C2H6, C2H5Cl, CH3OCH3, C3H5OH
Which of the following react tollens reagent : Ch3C-H, CH3COCH3, CH3COOH, CH3COC2H5
Aldehydes react with hydroxylamine in acidic solution to give : An oxime, Aldol, Polymer, Acetic acid
Which one is neutral amino acid : Lysine, Histidine, Valine, Glutmic acid
Which of the following is an addition polymer : Nylon 6,6, Polystyrene, terlene, Epoxy resin
The word paper is derived from the name of which reedy plant : Rose, Sun Flower, Water hyacinth, Papyrus
Newspaper can be recycled again and again by how many times : 2, 3, 4, 5