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

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

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.

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

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

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)

Mica is a bad conductor of electricity and a good conductor of?

Description : Mica is a bad conductor of electricity and a good conductor of?

Last Answer : Heat

Which of the following are bad conductors of electricity? (1) Mica and Quartz (2) Metals and Rubber (3) Metals and Mica (4) Mica and Rubber

Description : Which of the following are bad conductors of electricity? (1) Mica and Quartz (2) Metals and Rubber (3) Metals and Mica (4) Mica and Rubber

Last Answer : (1) Mica and Quartz Explanation: Metals are good conductors of electricity, because they have free electrons. Micaand quartz are examples of insulators (bad conductors of electricity), they don't have free electrons.

Gulf wax/paraffin in cooking?

Description : Gulf wax/paraffin in cooking?

Last Answer : I think it would matter as to how much wax your recipe calls for. My grandmother makes coconut balls every year for Christmas and uses Gulf Wax and they have never had a waxy coating.

Is paraffin wax stronger that stearic acid?

Description : Is paraffin wax stronger that stearic acid?

Last Answer : Need answer

Which of the following is the petroleum wax? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax

Description : Which of the following is the petroleum wax? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax

Last Answer : (3) Paraffin wax Explanation: Waxes are a class of chemical compounds that are plastic (malleable) near ambient temperatures. Characteristically, they melt above 45 °C, (113 °F) to give a ... in organic, non-polar solvents. All waxes are organic compounds, both synthetic and naturally occurring.

Candle is a mixture of – (1) Paraffin wax and stearic acid (2) Bees wax and stearic acid (3) Higher fat acids and stearic acid (4) Bees wax and paraffin wax

Description : Candle is a mixture of – (1) Paraffin wax and stearic acid (2) Bees wax and stearic acid (3) Higher fat acids and stearic acid (4) Bees wax and paraffin wax

Last Answer : (1) Paraffin wax and stearic acid Explanation: The candle can be made of paraffin (a byproduct of petroleum refining), microoystalline wax, stearin (now produced almost exclusively from palm waxes ... affordable and cheap wax alternatives) or spermaceti (extracted from the head of a Sperm Whale).

Both asphalt and wax are produced by __________ base crude oils. (A) Naphthenic (B) Asphalt (C) Paraffin (D) Mixed

Description : Both asphalt and wax are produced by __________ base crude oils. (A) Naphthenic (B) Asphalt (C) Paraffin (D) Mixed

Last Answer : (C) Paraffin

How are paraffin wax and beeswax different?

Description : How are paraffin wax and beeswax different?

Last Answer : Paraffin wax is a hydrocarbon. Beeswax, a natural wax is mainly made of esters of fatty acids and various long chain alcohols.

The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise. (A) Increases (B) Decreases (C) Remains unchanged (D) Decreases linearly

Description : The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise. (A) Increases (B) Decreases (C) Remains unchanged (D) Decreases linearly

Last Answer : (A) Increases

The healing agent used in hand creams is (A) soft paraffin (B) urea (C) bees wax (D) stearyl alcohol

Description : The healing agent used in hand creams is (A) soft paraffin (B) urea (C) bees wax (D) stearyl alcohol

Last Answer : (A) soft paraffin

_______ is one of the product formed during refining of petroleum which is black and sticky solid used for making roads. a) paraffin wax b)asphalt c)kerosene d) gasoline

Description : _______ is one of the product formed during refining of petroleum which is black and sticky solid used for making roads. a) paraffin wax b)asphalt c)kerosene d) gasoline

Last Answer : b)asphalt

Candle is a mixture of (1) Paraffin was and stearic acid (2) Bees wax and stearic acid (3) Higher fatty acids and stearic acid (4) Bees wax and paraffin wax

Description : Candle is a mixture of (1) Paraffin was and stearic acid (2) Bees wax and stearic acid (3) Higher fatty acids and stearic acid (4) Bees wax and paraffin wax

Last Answer :  Paraffin was and stearic acid

Which of the following is the petroleum wax ? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax

Description : Which of the following is the petroleum wax ? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax

Last Answer :  Paraffin wax

Which substance is a bad conductor of electricity but a good conductor of heat

Description : Which substance is a bad conductor of electricity but a good conductor of heat

Last Answer : Mica

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 along 82° 30’ longitude, along what degree of longitude it will be 6.30 a.m. ? 5. Where is Greeco-Roman influence in Indian art found ?

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

"Fire-fighting clothes" are made from (1) Mica (2) Asbestos (3) Talc (4) Steatite

Description : "Fire-fighting clothes" are made from (1) Mica (2) Asbestos (3) Talc (4) Steatite

Last Answer : (2) Asbestos Explanation: Bunker Gear or "Turnout Gear" are terms used by many firefighters to refer to their system of outer protective clothing. Fire fighter used to be made of asbestos in ... firemen, rescuers and industrials made of materials FR cotton, Nomex, Modacryl, FR viscose and others.

Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills. (A) Metalliferous ores (B) Non-metallic ores (C) Basic slags (D) Asbestos & mica

Description : Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills. (A) Metalliferous ores (B) Non-metallic ores (C) Basic slags (D) Asbestos & mica

Last Answer : (A) Metalliferous ores

Size reduction of asbestos and mica is done by (A) Hammer mills (B) Rod mills (C) Gyratory crushers (D) Crushing rolls

Description : Size reduction of asbestos and mica is done by (A) Hammer mills (B) Rod mills (C) Gyratory crushers (D) Crushing rolls

Last Answer : (A) Hammer mills

Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the(A) Blake jaw crusher(B) Cage mill(C) Stamp mill(D) Bradford's breaker

Description : Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the (A) Blake jaw crusher (B) Cage mill (C) Stamp mill (D) Bradford's breaker

Last Answer : (B) Cage mill

Which of the following is not a dielectric material? (A) Cotton, silk and paper (B) Asbestos, glass, porcelain and mica (C) Rubber and polymeric resins (D) All refractory materials

Description : Which of the following is not a dielectric material? (A) Cotton, silk and paper (B) Asbestos, glass, porcelain and mica (C) Rubber and polymeric resins (D) All refractory materials

Last Answer : Option C

“Fire-fighting clothes” are made from (1) Mica (2) Asbestos (3) Talc (4) Steatite

Description : “Fire-fighting clothes” are made from (1) Mica (2) Asbestos (3) Talc (4) Steatite

Last Answer : Asbestos

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.

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

Which of the following types of insulation will begin to deteriorate FIRST as a result of the heat generated in the conductor it surrounds? A. Varnished cloth B. Rubber C. Silicon D. Asbestos

Description : Which of the following types of insulation will begin to deteriorate FIRST as a result of the heat generated in the conductor it surrounds? A. Varnished cloth B. Rubber C. Silicon D. Asbestos

Last Answer : Answer: B

Asbestos (A) Is an excellent insulator for heat and electricity (B) Is fire-proof and acid proof (C) Has sp. gravity equal to 3.10 (D) All the abo

Description : Asbestos (A) Is an excellent insulator for heat and electricity (B) Is fire-proof and acid proof (C) Has sp. gravity equal to 3.10 (D) All the abo

Last Answer : Answer: Option D

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.

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

Metal tea pots have wooden handles because – (1) wood is a bad conductor of heat (2) it prevents electric shock (3) it gives beauty to the pots (4) it is hygienic

Description : Metal tea pots have wooden handles because – (1) wood is a bad conductor of heat (2) it prevents electric shock (3) it gives beauty to the pots (4) it is hygienic

Last Answer : (2) it prevents electric shock Explanation: Wood is a bad conductor of heat due to the arrangement of its molecules. As the molecules of wood are far from each other, they cannot pass heat through them.

When hot liquid is poured into a thick glass tumbler, it cracks because glass – (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Description : When hot liquid is poured into a thick glass tumbler, it cracks because glass – (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Last Answer : (1) is a bad conductor of heat so only inner surface expands Explanation: When hot liquid is poured into a thick glass tumbler, it cracks because glass is a bad conductor of heat so only inner surface expands.

Why does ice coverfed in sawdust ct melt quickly? (1) Sawdust does not allow the air to touch the ice (2) The water is absorbed by sawdust (3) Sawdust is a bad conductor of heat (4) Sawdust is good conductor of heat

Description : Why does ice coverfed in sawdust ct melt quickly? (1) Sawdust does not allow the air to touch the ice (2) The water is absorbed by sawdust (3) Sawdust is a bad conductor of heat (4) Sawdust is good conductor of heat

Last Answer : (3) Sawdust is a bad conductor of heat Explanation: Ice needs to absorb heat energy to melt and become water (called latent heat of fusion). Since saw-dust is a poor conductor of heat, it takes ... required heat energy. This allows ice to remain in solid state for more time when packed in saw dust.

Why does ice covered in sawdust not melt quickly ? (1) Sawdust does not allow the air to touch the ice (2) The water is absorbed by sawdust (3) Sawdust is a bad conductor of heat (4) Sawdust is good conductor of heat

Description : Why does ice covered in sawdust not melt quickly ? (1) Sawdust does not allow the air to touch the ice (2) The water is absorbed by sawdust (3) Sawdust is a bad conductor of heat (4) Sawdust is good conductor of heat

Last Answer : Sawdust is a bad conductor of heat

When hot liquid is poured into a thick glass tumbler, it cracks because glass : (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Description : When hot liquid is poured into a thick glass tumbler, it cracks because glass : (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Last Answer :  is a bad conductor of heat so only inner surface expands 

Metal tea pots have wooden handles because (1) wood is a bad conductor of heat (2) it prevents electric shock (3) it gives beauty to the pots (4) it is hygienic

Description : Metal tea pots have wooden handles because (1) wood is a bad conductor of heat (2) it prevents electric shock (3) it gives beauty to the pots (4) it is hygienic

Last Answer :  it prevents electric shock

Wollen clothes keep the body warm because (1) Wool increases the temperature of the body (2) Wool is a bad conductor (3) Wool absorbs radiant heat from outer objects (4) Wool rejects heat from the outer objects

Description : Wollen clothes keep the body warm because (1) Wool increases the temperature of the body (2) Wool is a bad conductor (3) Wool absorbs radiant heat from outer objects (4) Wool rejects heat from the outer objects 

Last Answer :  Wool is a bad conductor

Pure water is a bad conductor of electricity because it is

Description : Pure water is a bad conductor of electricity because it is

Last Answer : Feebly ionized

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.

Explain why anhydrous HCl is a bad conductor electricity while aqueous HCl is a good conductor of electricity.

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.

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

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

Why gold are good conductor of heat and electricity?

Description : Why gold are good conductor of heat and electricity?

Last Answer : What is the answer ?

Graphite is a good (A) Thermal & electrical insulator (B) Conductor of heat (C) Conductor of electricity (D) Both (B) & (C)

Description : Graphite is a good (A) Thermal & electrical insulator (B) Conductor of heat (C) Conductor of electricity (D) Both (B) & (C)

Last Answer : (D) Both (B) & (C)

Metalloids (A) Are good conductor of heat & electricity (B) Act as electron donors with metals & as electron acceptor with non metals (C) Are not necessarily solids at room temperature (D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Description : Metalloids (A) Are good conductor of heat & electricity (B) Act as electron donors with metals & as electron acceptor with non metals (C) Are not necessarily solids at room temperature ... & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Best conductor of heat and electricity is

Description : Best conductor of heat and electricity is (A) nickel (B) copper (C) chromium (D) aluminium 

Last Answer : Best conductor of heat and electricity is copper

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

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.

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

Description : The best conductor of electricity among the following is - (1) copper (2) iron (3) aluminum (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).