Ethylamine can be prepared by the action of bromine and caustic potash on
Q. Ethylamine can be prepared by the action of bromine and caustic potash on Acetamide Propionamide Formamide Methyl cyanide Answer: Propio...
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Showing posts with label Chemistry. Show all posts
Showing posts with label Chemistry. Show all posts
Which of the following states of matter has the strongest forces of attraction between its molecules?
Q. Which of the following states of matter has the strongest forces of attraction between its molecules? Solid Liquid Gas None Answer: Soli...
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Which of the following is true of carbon?
Q. Which of the following is true of carbon? It forms only polar molecules. It can form a maximum of three covalent bonds with other element...
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Fertiliser having high nitrogen content is
Q. Fertiliser having high nitrogen content is: Urea Ammonium nitrate Ammonium sulphate Calcium citrate Answer: Ammonium Nitrate A fertilize...
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Which of the following is the best fuel in terms of energy released per gram of fuel?
Q. Which of the following is the best fuel in terms of energy released per gram of fuel? Hydrogen Butane Ethanol Methane Answer: Hydrogen A ...
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Which of the following elements does not contain neutrons?
Q. Which of the following elements does not contain neutrons? (A) Oxygen (B) Nitrogen (C) Hydrogen (D) Copper (E) None of the above/More th...
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Cement is made hard with
Q. Cement is made hard with dehydration polymerization dissociation of water hydration and dissociation of water Answer: hydration and diss...
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Which of the following is the general formula for saturated hydrocarbons?
Q. Which of the following is the general formula for saturated hydrocarbons? CnH2n+2 CnH2n - 2 CnH2n+1 CnH2n -1 Answer: CnH2n+2 General For...
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Which of the following characteristics is common to hydrogen, nitrogen, oxygen and carbon dioxide?
Q. Which of the following characteristics is common to hydrogen, nitrogen, oxygen and carbon dioxide? They are all diatomic They are all ga...
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Reaction between which of the following two reactants will produce hydrogen gas?
Q. Reaction between which of the following two reactants will produce hydrogen gas? Magnesium and hydrochloric acid Copper and dilute nitri...
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Two reactants in a flask at room temperature are producing bubbles of a gas that run limewater milky. The rectants could be
Q. Two reactants in a flask at room temperature are producing bubbles of a gas that run limewater milky. The rectants could be zinc and hyd...
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Which of the following is the main component of the natural gas?
Q. Which of the following is the main component of the natural gas? Ethane Butane Carbon mono-oxide Methane Answer: Methane Natural gas is...
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Bleaching action of moist sulphur dioxide is because of its
Q. Bleaching action of moist sulphur dioxide is because of its oxidising property reducing property basic property acidic property Answer: ...
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Which of the following compounds is an unsaturated hydrocarbon?
Q. Which of the following compounds is an unsaturated hydrocarbon? methane propyne nonane methyl Answer: Propyne Hydrocarbon In organic che...
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Soldering of two metals is possible because of the property of:
Q. Soldering of two metals is possible because of the property of: viscosity surface tension osmosis cohesion Answer: Cohesion Cohesion o...
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Soda water contains
Q. Soda water contains Carbonic acid Sulphuric acid Carbon dioxide Nitrous acid Answer: Carbon Dioxide Carbonated Water (Soda Water) Carbon...
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Atoms are composed of:
Q. Atoms are composed of: Electrons and protons Electrons only Protons only Electrons and Nuclei Answer: D Atoms are composed of Electrons ...
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Which of the following is a true statement for thermoplastic polymers?
Q. Which of the following is a true statement for thermoplastic polymers? Are more brittle and poorer in impact than thermosets Are strong...
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Rusting of iron involves
Q. Rusting of iron involves Oxidation Reduction Displacement Decomposition Answer: Oxidation Oxidation · Oxidation is any chemical react...
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Which of the following elements is not the constituent of zeolite?
Q. Which of the following elements is not the constituent of zeolite? Al Si O Mg Answer: Mg · Zeolites are the aluminosilicate members of...
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