The best conductor of electricity among the following is - (1) copper (2) iron (3) aluminum (4) silver

The best conductor of electricity among the following is - (1) copper (2) iron (3) aluminum (4) silver
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(4) silver Explanation: Copper and Silver Are Most Common. Silver is the best conductor of electricity because it contains a higher number of movable atoms (free electrons).
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The best conductor of electricity among the following is : (1) Copper (2) Iron (3) Aluminium (4) Silver

Description : The best conductor of electricity among the following is : (1) Copper (2) Iron (3) Aluminium (4) Silver

Last Answer : (4) Silver Explanation: Copper: 9% less conductive than silver; aluminium is 10% less conductive than copper; while steel is the least conductive among the given options. The most electrically conductive metal is silver.

The best conductor of electricity among the following is : (1) Copper (2) Iron (3) Aluminium (4) Silver

Description : The best conductor of electricity among the following is : (1) Copper (2) Iron (3) Aluminium (4) Silver

Last Answer : Silver

Which of the following is the best conductor of electricity? (1) Zinc (2) Copper (3) Gold (4) Silver

Description : Which of the following is the best conductor of electricity? (1) Zinc (2) Copper (3) Gold (4) Silver

Last Answer : (4) Silver Explanation: Copper and Silver Are Most Common. Silver is the best conductor of electricity because it contains a higher number of movable atoms (free electrons).

Which is least Conductor of Electricity among the following? A. Wood (Answer) B. Copper C. Iron D. Water

Description : Which is least Conductor of Electricity among the following? A. Wood (Answer) B. Copper C. Iron D. Water

Last Answer : A. Wood (Answer)

Copper wires are generally used for electrical power transmission instead of iron wire because (1) copper is cheaper than iron (2) copper is lighter than iron (3) copper is a better conductor of electricity than iron (4) copper can take higher power than iron

Description : Copper wires are generally used for electrical power transmission instead of iron wire because (1) copper is cheaper than iron (2) copper is lighter than iron (3) copper is a better conductor of electricity than iron (4) copper can take higher power than iron

Last Answer : (3) copper is a better conductor of electricity than iron Explanation: Copper is generally preferred for electrical power transmission instead of iron because of its high electrical conductivity and low resistivity.

Copper wires are generally used for electrical power transmission instead of iron wire because : (1) copper is cheaper than iron (2) copper is lighter than iron (3) copper is a better conductor of electricity than iron (4) copper can take higher power than iron

Description : Copper wires are generally used for electrical power transmission instead of iron wire because : (1) copper is cheaper than iron (2) copper is lighter than iron (3) copper is a better conductor of electricity than iron (4) copper can take higher power than iron 

Last Answer : copper is a better conductor of electricity than iron

Strength of magnetic field of solenoid can be increased by adding core made of A. copper B. ferrous C. silver D. aluminum

Description : Strength of magnetic field of solenoid can be increased by adding core made of A. copper B. ferrous C. silver D. aluminum

Last Answer : ferrous

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.

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.

The metal used to make lightning conductors is – (1) Iron (2) Aluminum (3) Copper (4) Zinc

Description : The metal used to make lightning conductors is – (1) Iron (2) Aluminum (3) Copper (4) Zinc

Last Answer : (3) Copper Explanation: A lightning rod is a metal rod or metallic object mounted on top of a building, electrically bonded using a wire or electrical conductor to interface with ground or "earth" ... wire, instead of passing through the building, where it could start a fire or cause electrocution.

State four advantages of copper over aluminum as a conductor.

Description : State four advantages of copper over aluminum as a conductor.

Last Answer : It has higher conductivity, it is more ductile, it has relatively high tensile strength, and it can be easily soldered.

The outside of the steel can is protected from rust by a thin layer of ____. a. tin c. aluminum b. copper d. silver

Description : The outside of the steel can is protected from rust by a thin layer of ____. a. tin c. aluminum b. copper d. silver

Last Answer : a. tin

The metal extracted from Bauxite is : (1) Silver (2) Copper (3) Manganese (4) Aluminum

Description : The metal extracted from Bauxite is : (1) Silver (2) Copper (3) Manganese (4) Aluminum

Last Answer : Aluminum

Which is the heaviest metal among the following? (1) Gold (2) Silver (3) Iron (4) Copper

Description : Which is the heaviest metal among the following? (1) Gold (2) Silver (3) Iron (4) Copper

Last Answer : (1) Gold Explanation: The heaviness of any metal is defined with reference to high densities, atomic weights, or atomic numbers. The atomic masses of the given elements are: Gold: 196.96654; Silver: 107.8682 ... .546; Iron: 55.847. So the heaviest metal is gold, followed by silver, copper and iron.

Which among the following metal is used for galvanization? (1) Zinc (2) Copper (3) Iron (4) Silver

Description : Which among the following metal is used for galvanization? (1) Zinc (2) Copper (3) Iron (4) Silver

Last Answer : (1) Zinc Explanation: Galvanization is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc.

Which is the heaviest metal among the following? (1) Gold (2) Silver (3) Iron (4) Copper

Description : Which is the heaviest metal among the following? (1) Gold (2) Silver (3) Iron (4) Copper

Last Answer : Gold

Which °fine metals has the maximum thermal conductivity? (1) Iron (2) Aluminium (3) Silver (4) Copper

Description : Which °fine metals has the maximum thermal conductivity? (1) Iron (2) Aluminium (3) Silver (4) Copper

Last Answer : (3) Silver Explanation: Silver has the best thermal conductivity of 429 W/mK at RT (295K). It is followed by copper, gold and aluminium. Metals generally have very good electrical conductivity, that leads to high thermal conductivity.

Which of the metals has the maximum thermal conductivity? (1) Iron (2) Aluminium (3) Silver (4) Copper

Description : Which of the metals has the maximum thermal conductivity? (1) Iron (2) Aluminium (3) Silver (4) Copper

Last Answer : Silver

When would silver be used as a conductor in preference to copper?

Description : When would silver be used as a conductor in preference to copper?

Last Answer : When the need for conductivity is great enough to justify the additional expense.

(a) Write one example for each of decomposion reaction carried out with help of (i) Electricity (ii) Heat (iii) Light (b) Which of the following statements is correct and why copper can displace silver from silver nitrate and silver can displace copper from copper sulphate solution. -Chemistry

Description : (a) Write one example for each of decomposion reaction carried out with help of (i) Electricity (ii) Heat (iii) Light (b) Which of the following statements is correct and why copper can displace silver from silver nitrate and silver can displace copper from copper sulphate solution. -Chemistry

Last Answer : Thi is the Answer:

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

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.

How Aluminum iron copper and oxygen are all examples of what compounds mixtures elements gases?

Description : How Aluminum iron copper and oxygen are all examples of what compounds mixtures elements gases?

Last Answer : Need answer

Most conducting materials such as copper, aluminum, iron, nickel, and tungsten _____________. A. increase in resistance with increased temperature B. increase in resistance with decreased temperature C. decrease in resistance with increased temperature D. increase in conductance with increased temperature

Description : Most conducting materials such as copper, aluminum, iron, nickel, and tungsten _____________. A. increase in resistance with increased temperature B. increase in resistance with decreased ... C. decrease in resistance with increased temperature D. increase in conductance with increased temperature

Last Answer : Answer: A

The displacement reaction between iron (III) oxide and a metal X is used for welding the rail tracks. Here X is: (a) Copper granules (b) Magnesium ribbon (c) Sodium pellets (d) Aluminum dust

Description : The displacement reaction between iron (III) oxide and a metal X is used for welding the rail tracks. Here X is: (a) Copper granules (b) Magnesium ribbon (c) Sodium pellets (d) Aluminum dust

Last Answer : (d) Aluminum dust

Which one of the following materials is useful for making bulb filaments? a. aluminum b. Iron c. Copper d. Tungsten

Description : Which one of the following materials is useful for making bulb filaments? a. aluminum b. Iron c. Copper d. Tungsten

Last Answer : a. aluminum

Which of the following metals is LEAST reactive toward atmospheric oxygen? w) Lead x) Copper y) Iron z) Aluminum

Description : Which of the following metals is LEAST reactive toward atmospheric oxygen? w) Lead x) Copper y) Iron z) Aluminum

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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 electricity (d) Artificial diamonds can be prepared by subjecting a solution of pure carbon in iron to very high pressures and temperatures

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)

Which is the best conductor: silver, carbon, or iron?

Description : Which is the best conductor: silver, carbon, or iron?

Last Answer : Silver is the best conductor. Carbon is the semiconductor. Iron have less conductance as compared to silver.

Which is a good conductor of electricity?

Description : Which is a good conductor of electricity?

Last Answer : – Human body

What is the best conductor of electricity?

Description : What is the best conductor of electricity?

Last Answer : – Salt water

Which of the following is a good conductor of heat but bad conductor of electricity? (1) mica (2) asbestos (3) celluloid (4) paraffin wax

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.

Solids which conduct electricity at higher temperature but not at lower temperature are called (1) super-conductor (2) metallic-conductor (3) semi-conductor (4) insulator

Description : Solids which conduct electricity at higher temperature but not at lower temperature are called (1) super-conductor (2) metallic-conductor (3) semi-conductor (4) insulator

Last Answer : (3) semi-conductor Explanation: Semiconductors are insulators at low temperatures and reasonably good conductors at higher temperatures. As temperature increases, the semiconductor material becomes a better and better conductor.

Which of the following is a conductor of electricity? (1) Rubber (2) Pure water (3) Salt water (4) Benzene

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.

Which one of the following non-metals is not a poor conductor of electricity? (1) Sulphur (2) Selenium (3) Bromine (4) Phosphorus

Description : Which one of the following non-metals is not a poor conductor of electricity? (1) Sulphur (2) Selenium (3) Bromine (4) Phosphorus

Last Answer : (2) Selenium Explanation: Selenium is a non-metallic element; it is not a very good conductor of heat and electricity.

Which of the following is the best conductor of electricity? (1) Ordinary water (2) Sea water (3) Boiled water (4) Distilled water

Description : Which of the following is the best conductor of electricity? (1) Ordinary water (2) Sea water (3) Boiled water (4) Distilled water

Last Answer : (2) Sea water Explanation: Sea water is a "good" conductor. It has a resistance and resistance increases by distance. So if you dip a very high voltage electric wire in the ocean, the area around it (even 100 meters or more based on how high it is) gets electric.

Which of the following is the best conductor of Electricity? (1) Ordinary water (2) Sea water (3) Boiled water (4) Distilled water

Description : Which of the following is the best conductor of Electricity? (1) Ordinary water (2) Sea water (3) Boiled water (4) Distilled water

Last Answer : (2) Sea water Explanation: It sounds crazy, but it's true! This is because Sea water has Salt that is a good conductor of electricity. Salt molecules are made of sodium ions and chlorine ions.

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 : 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.

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

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.

Good conductor of electricity is – (1) dry air (2) paper (3) kerosene (4) graphite

Description : Good conductor of electricity is – (1) dry air (2) paper (3) kerosene (4) graphite

Last Answer : (4) graphite Explanation: Graphite has a tendency to behave very much like a metal because the carbon molecules arrange themselves into a lattice structure. The crystal lattice is the same orientation that ... better than the dry air paper and kerosene and that's what makes it a good conductor.

Solids which conduct electricity at higher temperature but not at lower temperature are called (1) super-conductor (2) metallic-conductor (3) semi-conductor (4) insulator

Description : Solids which conduct electricity at higher temperature but not at lower temperature are called (1) super-conductor (2) metallic-conductor (3) semi-conductor (4) insulator

Last Answer : semi-conductor

Which of the following is a good conductor of heat but bad conductor of electricity ? (1) mica (2) asbestos (3) celluloid (4) paraffin wax

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

Which of the following is a conductor of electricity ? (1) Rubber (2) Pure water (3) Salt water (4) Benzene

Description : Which of the following is a conductor of electricity ? (1) Rubber (2) Pure water (3) Salt water (4) Benzene

Last Answer : Salt water

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 : 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 : Mica

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

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

Good conductor of electricity is (1) dry air (2) paper (3) kerosene (4) graphite

Description : Good conductor of electricity is (1) dry air (2) paper (3) kerosene (4) graphite

Last Answer : graphite

Which one of the following is an ohmic conductor? (1) Germanium (2) Silicon (3) Carbon (4) Silver

Description : Which one of the following is an ohmic conductor? (1) Germanium (2) Silicon (3) Carbon (4) Silver

Last Answer : (4) Silver Explanation: Ohmic conductors are conductors that obey Ohm's law, that is Voltage/Current ratio is constant; in other words, the equation Resistance = Voltage/Current is obeyed. ... s resistance does not change with varying current. Metallic conductors such as silver are Ohmic conductors.

Which one of the following is an ohmic conductor? (1) Germanium (2) Silicon (3) Carbon (4) Silver

Description : Which one of the following is an ohmic conductor? (1) Germanium (2) Silicon (3) Carbon (4) Silver

Last Answer : Silver

Among the following, which is always found in free-state in nature? (1) Gold (2) Silver (3) Sodium (4) Copper

Description : Among the following, which is always found in free-state in nature? (1) Gold (2) Silver (3) Sodium (4) Copper

Last Answer : (1) Gold Explanation: Gold is the least reactive in the reactivity series. Since it does not react with other elements, it is found in a free form. Only gold, silver, copper and the ... occur in nature in larger amounts. Nonmetallic elements occurring in the native state include carbon and sulfur.

What among following is used to produce artificial rain? (1) Copper oxide (2) carbon monoxide (3) silver iodide (4) silver nitrate

Description : What among following is used to produce artificial rain? (1) Copper oxide (2) carbon monoxide (3) silver iodide (4) silver nitrate

Last Answer : (3) silver iodide Explanation: Artificial process of making rain is done by precipitation, a process of condensation of water vapors in the air. This is done by using cloud seeding chemicals like potassium iodide, silver iodide, liquid propane or solid carbon dioxide (dry ice).

What among following is used to produce artificial rain? (1) copper oxide (2) carbon monoxide (3) silver iodide (4) silver nitrate

Description : What among following is used to produce artificial rain? (1) copper oxide (2) carbon monoxide (3) silver iodide (4) silver nitrate

Last Answer : (3) silver iodide Explanation: Artificial rain is produced by spraying clouds with substances like Silver Iodide (costly) or cheaper ones like solid carbon dioxide (dry ice) or even finely powdered Sodium Chloride.

Among the following, which is always found in free-state in nature? (1) Gold (2) Silver (3) Sodium (4) Copper

Description : Among the following, which is always found in free-state in nature? (1) Gold (2) Silver (3) Sodium (4) Copper

Last Answer : Gold