Description : Sugar cane canbe fermented to make ______. a. Methane gas. b. Alcohol. c. Electricity. d. All of the above.
Last Answer : b. Alcohol.
Description : Shaving soaps are (A) Soft potassium soaps (potassium salt of fatty acid) with free Stearic acid to give lather a lasting property (B) Metallic soaps compounded with frothing agents (C) High free alkali soaps having excess of cane sugar and alcohol (D) None of these
Last Answer : (A) Soft potassium soaps (potassium salt of fatty acid) with free Stearic acid to give lather a lasting property
Description : Which among the following is false about acids? (1) They give H+ ions in aqueous solution (2) Most acids contain hydrogen (3) They turn blue litmus red (4) They are bad conductor of electricity in aqueous solution
Last Answer : (4) They are bad conductor of electricity in aqueous solution Explanation: Acids are good conductors of electric current in aqueous solution. When acids come in contact with water, they liberate OH ions, resulting in conduction of electricity.
Description : During the fermentation of sugar, which enzyme which converts glucose into ethyl alcohol? -Do You Know?
Last Answer : answer:
Description : During the fermentation of sugar, which enzyme which converts glucose into ethyl alcohol?
Last Answer : zymase
Description : 1. Which organ breaks fat to produce cholesterol? 2. By whom the salary and perquisites of the Prime Minister of India are decided? 3. During the fermentation of sugar, which enzyme which converts ... any delta at its mouth? 20. Who presided over the first Buddhist Council held at Rajgriha ?
Last Answer : Answer : 1. Liver 2. Parliament 3. zymase 4. Equator 5. Abdur Rahim 6. Protection of human rights 7. Lungs 8. Leaf 9. F. Galton 10. Town planning and drainage 11. The Ministry is dissolved 12. ... property 16. Loss of the sense of smell 17. Insects 18. Nagaland 19. Tapti & Narmada 20. Maha Kassapa
Description : Which of the following statements is not true about diamonds? (a) It is the purest form of carbon (b) It is the hardest naturally occurring substance (c) It is a good conductor of ... diamonds can be prepared by subjecting a solution of pure carbon in iron to very high pressures and temperatures
Last Answer : Ans:(c)
Description : Cones are prepared from Options: 1) Milk Sugar 2) Mixture of Glucose and distilled water 3) Mixture of Cane Sugar and Egg albumin 4) Dextrose
Last Answer : Correct Answer: 3) Mixture of Cane Sugar and Egg albumin
Description : The enzyme that hydrolyses cane sugar to glucose and fructose is (a) lipase (b) invertase (c) zymase (d) diastase
Last Answer : Ans:(b)
Description : Cane sugar (Sucrose) injected into blood is (A) changed to fructose (B) changed to glucose (C) undergoes no significant change (D) changed to glucose and fructose
Last Answer : C
Description : A fruit or vegetable impregnated with the cane sugar or glucose syrup
Last Answer : Ans. Candied fruit or vegetable
Description : Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is (A) Propane (B) Diethylene glycol (C) Aqueous solution (10% water) of diethylene glycol (D) Methyl ethyl ketone (MEK)
Last Answer : (C) Aqueous solution (10% water) of diethylene glycol
Description : Transparent soaps (e.g. Pears) are (A) Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency (B) ... (C) Metallic soaps with frothing agent from which glycerine has not been recovered (D) None of these
Last Answer : (A) Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency
Description : Explain why anhydrous HCl is a bad conductor electricity while aqueous HCl is a good conductor of electricity.
Last Answer : Ans: Hcl is a covalent compound and has no ion but when dissolve into solution it under go dissociation and produce ions in the solution and hence conduct electricity.
Description : Which enzyme converts glucose into ethyl alcohol? -Biology
Description : The enzyme that converts glucose to ethyl alcohol is – (1) invertase (2) Maltase (3) Zymase (4) Diastase
Last Answer : (3) Zymase Explanation: The fermentation of sugar into ethanol is one of the earliest biotechnologies employed by humanity. Fermentation of fermentable sugars by suitable yeast produces ethanol (ethyl ... wine yeast, for example, contain zymase, an enzyme that can convert glucose to ethanol.
Description : The enzyme which can catalyse the conversion of glucose to ethyl alcohol is (A) Invertase (B) Maltase (C) Diastase (D) Zymase
Last Answer : (D) Zymase
Description : The enzyme that converts glucose to ethyl alcohol is : (1) Invertase (2) Maltase (3) Zymase (4) Diastase
Last Answer : Zymase
Description : Substance used as an anti-freeze in radiators of automobiles is : (1) Methyl alcohol and H2O (2) Methy] alcohol (3) Ethyl alcohol (4) Ethyl alcohol and H2O
Last Answer : (1) Methyl alcohol and H2O Explanation: Methyl alcohol and water are used as an anti-freeze in radiators of automobiles.
Description : Substance used as an anti - freeze in radiators of automobiles is : (1) Methyl alcohol and H2O (2) Methyl alcohol (3) Ethyl alcohol (4) Ethyl alcohol and H2O
Last Answer : Methyl alcohol and H2O
Description : During fermentation of sugar, the compound which is always formed is – (1) Methyl Alcohol (2) Ethyl Alcohol (3) Acetic Acid (4) Ethylene
Last Answer : (2) Ethyl Alcohol Explanation: Fermentation is the conversion of sugar into car-bon dioxide has (CO2) and ethyl alcohol. This process is carried out by yeast cells using a range of enzymes.
Description : During fermentation of sugar, the compound which is always formed is : (1) Methyl Alcohol (2) Ethyl Alcohol (3) Acetic Acid (4) Ethylene
Last Answer : Ethyl Alcohol
Description : What product is formed when electricity is passed throughan aqueous solution of sodium chloride? (1) Sodium and water (2) Sodium oxide (3) Sodium and chlorine (4) Sodium hydroxide
Last Answer : (4) Sodium hydroxide Explanation: When electricity is passed through an aqueous solution of sodium chloride, it gives hydrogen, chlorine and sodium hydroxide as a product.
Description : Common food sources of Vitamin A are:------? A. Milk, eggs, butter, cheese, cream, and liver B. White sugar, honey, and sugar cane C. Broccoli, apricots, cantaloupe, carrots, sweet potato, spinach D. Both A and C (Answer)
Last Answer : D. Both A and C (Answer)
Description : Which compound does not conduct electricity in aqueous solution ?
Last Answer : Covalent compounds do not conduct electricity in aqueous solution.
Description : Which compound conducts electricity in aqueous solution ?
Last Answer : Ionic compounds conduct electricity in aqueous solution.
Description : Why does hydrogen iodide in an aqueous solution conduct an electricity?
Last Answer : Hydrogen iodide is dissociated in water.
Description : An aqueous solution of glucose behaves as an aldehyde because __________. (a) it is hydrolyzed by water to the free aldehyde (b) it is a ketone, but is in equilibrium with the aldehyde form ... aldehyde (d) its cyclic hemiacetal, the predominant form, is in equilibrium with the free aldehyde form
Last Answer : its cyclic hemiacetal, the predominant form, is in equilibrium with the free aldehyde form
Description : Which of the following is a conductor of electricity? (1) Rubber (2) Pure water (3) Salt water (4) Benzene
Last Answer : (3) Salt water Explanation: Pure water is actually an extremely poor conductor, but saturated salt water is a good conductor. The saltier the water, the better the conductance. The reason it ... charged Chlorine CF. When current is applied, it is easily conducted by the highly charged ions.
Description : Which of the following is a conductor of electricity ? (1) Rubber (2) Pure water (3) Salt water (4) Benzene
Last Answer : Salt water
Description : Water-ethyl alcohol solution can be concentrated (in respect of alcohol concentration) by __________ distillation. (A) Atmospheric (B) Vacuum (C) High pressure (D) None of these
Last Answer : (B) Vacuum
Description : The doctor's solution comprises of sodium plumbite in (A) Alcohol (B) Water (C) Aqueous caustic soda (D) Soda ash
Last Answer : (C) Aqueous caustic soda
Description : An aqueous solution is always a solution in which the: w) solute is water x) solute is a salt y) solvent is a salt z) solvent is water
Last Answer : ANSWER: Z -- SOLVENT IS WATER
Description : Out of glucose, urea and dodecyl trimethyl ammonium chloride, which one forms micelles in aqueous solution above certain concentration ?
Last Answer : Ans. Dodecyl trimethyl ammonium chloride.
Description : An aqueous solution of CuSO4 is acidic in nature because the salt undergoes (a) dialysis (b) hydrolysis (c) electrolysis (d) photolysis
Description : Shravani was performing inorganic qualitative analysis of a salt. To an aqueous solution of that salt, she added silver nitrate.
Last Answer : Shravani was performing inorganic qualitative analysis of a salt. To an aqueous solution ... observations and write the chemical reactions involved.
Description : Which substance is a bad conductor of electricity but a good conductor of heat
Last Answer : Mica
Description : 1. What is the main constituent of haemoglobin? 2. By whom is the Prime Minister appointed? 3. Which substance is a bad conductor of electricity but a good conductor of heat? 4. When it is noon ... maps of India? 20. By whom the Mahatma Gandhi was referred to Father of the Nation' first?
Last Answer : Answer : 1. Iron 2. President 3. Mica 4. 0°E or W 5. Gandhara 6. National income 7. Faiz Ahmed Faiz 8. 8 9. Divergent movement 10. Shahjahan 11. The President 12. Black 13. Amir ... Ram Das 16. Prime Minister 17. Artery 18. Defence Minister 19. Geographical Survey of India 20. Subhash Chandra Bose
Description : Aqueous solution of raw sugar, when passed over beds of animal charcoal, becomes colourless. Explain.
Last Answer : Aqueous solution of raw sugar, when passed over beds of animal charcoal, becomes colourless. Explain.
Description : For concentrating an aqueous solution of a material like anhydrous Na2SO4, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. (A) High pressure (B) Vacuum (C) Backward feed (D) None of these
Description : An aqueous solution whose concentration effectivel matches the concentration of blood is said to be: w) isotopic x) isobaric y) isotonic z) isoelectronic
Last Answer : ANSWER: Y -- ISOTONIC
Description : Which of the following compounds would be unaffected by boiling aqueous NaOH? (a) Chloroethane (b) Acetaldehyde (c) Chlorobenzene (d) Ethyl acetate
Last Answer : Chlorobenzene
Description : Which of the following statements is false? (a) Diethyl ether has been used as a general anesthetic (b) Ethyl alcohol is present in all alcoholic beverages (c) Methyl alcohol is produced by fermentation of sugars (d) Ethylene glycol is a common antifreeze for automobiles
Last Answer : Methyl alcohol is produced by fermentation of sugars
Description : What is the best conductor of electricity a 0.1 M solution?
Last Answer : Sulphuric acid
Description : Which of the properties listed below would you expect a solution to have if it is an acid? w) It feels slippery to the touch. x) It tastes bitter. y) It turns red litmus blue. z) It is a conductor of electricity.
Last Answer : ANSWER: Z -- IT IS A CONDUCTOR OF ELECTRICITY.
Description : When you do strenuous exercise, oxygen is used up rapidly. What substance is formed. a) pyruvic acid(pron: pie-ROO-vik) b) lactic acid c) glucose d) alcohol
Last Answer : ANSWER: B -- LACTIC ACID
Description : Pick out the wrong statement. (A) At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature (B) Normally, the gases which are easily liquefied are more soluble ... (D) At constant pressure, solubility of a gas in a liquid increases with rise in temperature
Last Answer : (A) At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature
Description : Sucrose is commonly referred to as ____. a. salt c. sugar b. carbohydrate d. glucose
Last Answer : c. sugar
Description : The enzyme in whose presence glucose and fructose are converted into alcohol is - (1) Diastase (2) Maltase (3) Invertase (4) Zymase
Last Answer : (4) Zymase Explanation: The slow decomposition of organic matter into simpler substances in presence of enzymes is known as fermentation. Fermentation is used for the preparation of alcoholic ... first converted to glucose and fructose (isonomers) in presence of an enzyme called invertase.
Description : The enzyme in whose presence glucose and fructose are converted into alcohol is (1) Diastase (2) Maltase (3) Invertase (4) Zymase