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 : The substance whose aqueous solution would be a better conductor of electricity than water is (a) cane sugar (b) glucose (c) common salt (d) ethyl alcohol
Last Answer : Ans:(c)
Description : From amongest the following alcohols, the one that would react fastest with conc. HCl and anhydrous `ZnCl_(2)` is
Last Answer : From amongest the following alcohols, the one that would react fastest with conc. HCl and anhydrous ` ... . 2-Methylpropan-2-ol D. 2-Methylpropanol-1
Description : Which alcohol is most reactive towards `HCl` in the presence of anhydrous `ZnCl_(2)`?
Last Answer : Which alcohol is most reactive towards `HCl` in the presence of anhydrous `ZnCl_(2)`? A. primary B. secondary C. tertiary D. all of these
Description : Proteins are soluble in (A) Anhydrous acetone(B) Aqueous alcohol (C) Anhydrous alcohol (D) Benzene
Last Answer : Answer : B
Description : Nickel made/clad equipments are suitable for handling (A) Ammonia (both aqueous & anhydrous) (B) Fruit juices, milk & its products and caustic soda solution (C) Nitric acid & hydrochloric acid (concentrated) (D) Sulphuric acid (concentrated)
Last Answer : (B) Fruit juices, milk & its products and caustic soda solution
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
Last Answer : (B) Vacuum
Description : What happen when mango is placed in dilute aqueous soln. of HCl?
Last Answer : Ans. When mango is placed in dilute aqueous soln. of HCl it swells.
Description : A compound undergoes reduction with LiAlH4. It also dissolves in aqueous NaOH from which it can be recovered by addition of HCl. The compound is (a) a carboxylic acid (b) an ester (c) an acid anhydride (d) an alcohol
Last Answer : a carboxylic acid
Description : What is the pH of an aqueous solution of 0.1 molar HCl? w) 7 x) 13 y) 1 z) 3
Last Answer : ANSWER: Y -- 1
Description : Compound A(`C_7H_8O`)is insoluble in water, dilute HCl & aqueous `NaHCO_3`, it dissolves in dilute NaOH.When A is treatedwith `Br_2` water it is conve
Last Answer : Compound A(`C_7H_8O`)is insoluble in water, dilute HCl & aqueous `NaHCO_3`, it dissolves in dilute NaOH.When A ... . The structure ofA is A. B. C. D.
Description : Why is aniline soluble in aqueous HCl?
Last Answer : Why is aniline soluble in aqueous HCl?
Description : `CH_(3)CH_(2)CH_(2)CONH_(2)` is boiled with aqueous NaOH, then the reaction mixture is acidified with HCl. The products obtained are
Last Answer : `CH_(3)CH_(2)CH_(2)CONH_(2)` is boiled with aqueous NaOH, then the reaction mixture is acidified with HCl. The ... CH_(3)CH_(2)CH_(2)COO^(-)+NH_(4)Cl`
Description : Beryllium oxide is treated separately with aqueous HCl and aqueous NaOH solutions.
Last Answer : Write balanced chemical equations : Beryllium oxide is treated separately with aqueous HCl and aqueous NaOH solutions.
Description : (a) Show on a diagram the transfer of electrons between the atoms in the formation of MgO. Write symbols of cation and anion present in MgO. (b) Name the solvent in which ionic compounds are generally soluble. (c) Why are aqueous solutions of ionic compounds able to conduct electricity? -Chemistry
Last Answer : (b) Ionic compounds are soluble in water. (c) It is because aqueous solutions consist of ions which can move freely in them and carry current.
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 : 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 : Pure water is a bad conductor of electricity because it is
Last Answer : Feebly ionized
Description : Consider the following statements: 1. Mica is good conductor of heat. 2. Mica is a bad conductor of heat. 3. Mica is a good conductor of electricity. 4. Mica is a bad conductor of electricity. Which of the above statements is/are correct? (a) 1 only (b) 1 and 4 (c) 1 and 3 (d) 2 and 4
Last Answer : Ans:(b)
Description : Which of the following is a good conductor of heat but bad conductor of electricity? (1) mica (2) asbestos (3) celluloid (4) paraffin wax
Last Answer : (1) mica Explanation: Mica is a good conductor of heat but bad conductor of electricity.
Description : Which of the following is a good conductor of heat but a bad conductor of electricity? (1) Celluloid (2) Rubber (3) Asbestos (4) Mica
Last Answer : (4) Mica Explanation: Good conductors of heat are good conductors of electricity. Mica is an exception which although being a good conductor of heat and a bad conductor of electricity. It is commonly ... to assist in the transfer of the generated heat to the heat sink or chassis for dissipation.
Description : Pure water is bad conductor of electricity because it is – (1) feebly ionized (2) not volatile (3) a very good solvent (4) a non-polar solvent
Last Answer : (1) feebly ionized Explanation: Pure water is a covalent compound. It exists as simple discrete molecules and have a simple molecular structure. Hence, it does not exist as ions. Therefore, ... into hydrogen ions and hydroxide ions. The presence of mobile ions enables it to conduct electricity.
Description : Which substance is a bad conductor of electricity but a good conductor of heat
Last Answer : Mica
Description : Mica is a bad conductor of electricity and a good conductor of?
Last Answer : Heat
Description : The electrode for a battery must be A. A semi conductor B. An insulator C. A good conductor of electricity D. A bad conductor of electricity
Last Answer : C. A good conductor of electricity
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 : Which of the following is a good conductor of heat but bad conductor of electricity ? (1) mica (2) asbestos (3) celluloid (4) paraffin wax
Last Answer : mica
Description : Which of the following is a good conductor of heat but a bad conductor of electricity ? (1) Celluloid (2) Rubber (3) Asbestos (4) Mica
Description : Pure water is bad conductor of electricity because it is (1) feebly ionized (2) not volatile (3) a very good solvent (4) a non-polar solvent
Last Answer : feebly ionized
Description : In which following statement are correct. (a) Anhydrous hydrogen fluroide is a liquid at ordianry temperature while other halogen acid are gases. (b)
Last Answer : In which following statement are correct. (a) Anhydrous hydrogen fluroide is a liquid at ordianry temperature while other ... (B) b C. (C) c D. d
Description : Use the information and data given below to answer the questions Stronger intermolecular forces result in higher boiling point Strength of London forces increases with the number of electrons in the molecule ... here? (c) Why is the boiling point of HF highest while that of HCl lowest?
Last Answer : Ans :( a) In the molecules HCl, HBr and HI, dipole-dipole interaction and London forces are present. (b) Dipole moment of HCl > HBr > HI but boiling point of HCl < HBr
Description : Why does hydrogen iodide in an aqueous solution conduct an electricity?
Last Answer : Hydrogen iodide is dissociated in water.
Description : Depending on the method of conduction of electricity, the electric conductor can be divided into how many parts ?
Last Answer : Depending on the method of electric transport, electric conductors can be divided into two main categories- 1. Electronic or metallic conductor (electrolytic) 2. Electrolytic or electrolytic conductor
Description : Give reason for the following observation (L-III) (a)- The tendency for catenation decreases down the group in group 14 (b)- The decreasing stability of+3 oxidation state with increasing atomic no. in group 13. (c)- Molten aluminum bromide is a poor conductor of electricity.
Last Answer : Ans. -(a) it is due to decrease in bond dissociation energy which is due to increase in atomic size C-C > Si-Si >Ge-Ge>Sn-Sn>Pb-Pb. (b)- It is due to inert pair effect. (c)- Molten AlBr3 is poor conductor of electricity because it is covalent compound.
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 : Methanol cannot be dried with anhydrous CaCl2 because - (1) CaCl2 dissolves in it (2) it is not good dehydrating agent (3) it forms a solid CaCl2 × 4CH3OH (4) it reacts with CH3OH
Last Answer : (3) it forms a solid CaCl2 × 4CH3OH
Description : In laboratory preparation of H2O2 from hydrated barium peroxide with sulphuric acid , anhydrous barium peroxide is not used Why ?
Last Answer : Ans-Because it forms a protective layer of barium sulphate over anhydrous barium peroxide
Description : Benzene reacts with benzoyl chloride in the presence of anhydrous aluminium chloride to form (a) Benzyl chloride (b) Benzaldehyde (c) Benzal chloride (d) Benzophenone
Last Answer : Benzophenone
Description : 1,2-Ethanediol reacts with anhydrous zinc chloride to form (a) Ethylene (b) Acetaldehyde (c) Acetylene (d) Ethyl chloride
Last Answer : Acetaldehyde
Description : If a material has the capacity to behave either as an acid or a base it is said to be: w) amorphous x) amphoteric y) anhydrous z) aklaline
Last Answer : ANSWER: X -- AMPHOTERIC
Description : The percent composition by mass of copper in anhydrous cupric sulfate is about: w) 10% x) 25% y) 40% z) 75%
Last Answer : ANSWER: C -- 40%
Description : Each clue leads to a word beginning with B.A.T. 1. A BAT used by an orchestra conductor. 2. This BAT fight crime. 3. A BAT that you soak in. 4. Which BAT stores electricity? 5. This naval BAT sails the sea. What are the answers? -Riddles
Last Answer : 1. BATon 2. BATman 3. BATh 4. BATtery 5. BATtle ship
Description : Which is the best conductor of electricity ? -General Knowledge
Last Answer : The answer is 'Silve'
Description : What is the best conductor of electricity? -Do You Know?
Last Answer : answer:
Description : Which is a good conductor of electricity? -Do You Know?
Description : Which of the following metals is the most efficient conductor of electricity? -General Knowledge