The element used in lead pencils is-----? A. Zinc B. Lead C. Carbon (Answer) D. Tin

The element used in lead pencils is-----?

A. Zinc

B. Lead

C. Carbon (Answer)

D. Tin
by

1 Answer

Answer :

C. Carbon (Answer)
by

Related questions

Since fuse elements are made of zinc or any alloy of tin and lead, the melting point of the fuse element must be _____________. A. higher than that of copper B. lower than that of copper C. equal to that of copper D. reached when the conductor it is protecting becomes 'white hot.'

Description : Since fuse elements are made of zinc or any alloy of tin and lead, the melting point of the fuse element must be _____________. A. higher than that of copper B. lower than that of copper C. equal to that of copper D. reached when the conductor it is protecting becomes 'white hot.'

Last Answer : Answer: B

Electric fuse is an alloy of – (1) tin and lead (2) zinc and lead (3) copper and iron (4) carbon and tin

Description : Electric fuse is an alloy of – (1) tin and lead (2) zinc and lead (3) copper and iron (4) carbon and tin

Last Answer : (1) tin and lead Explanation: Electric fuse is an alloy of tin and lead.

_____ gives hardness to stainless steel. (1) Zinc (2) Lead (3) Carbon (4) Tin

Description : _____ gives hardness to stainless steel. (1) Zinc (2) Lead (3) Carbon (4) Tin

Last Answer : (3) Carbon Explanation: Iron is alloyed with carbon to make steel and has the effect of increasing the hardness and strength of iron.

______ gives hardness to stainless steel. (1) Zinc (2) Lead (3) Carbon (4) Tin

Description : ______ gives hardness to stainless steel. (1) Zinc (2) Lead (3) Carbon (4) Tin

Last Answer : (3) Carbon Explanation: Iron is alloyed with carbon lo make steel and has the effect of increasing the hardness and strength of iron. Pure iron cannot be hardened or strengthened by heat treatment but ... .3% carbon. The higher the carbon content, the less formable and the tougher the steel becomes.

_____ gives hardness to stainless steel. (1) Zinc (2) Lead (3) Carbon (4) Tin

Description : _____ gives hardness to stainless steel. (1) Zinc (2) Lead (3) Carbon (4) Tin

Last Answer : Carbon

Electric fuse is an alloy of (1) tin and lead (2) zinc and lead (3) copper and iron (4) carbon and tin

Description : Electric fuse is an alloy of (1) tin and lead (2) zinc and lead (3) copper and iron (4) carbon and tin

Last Answer :  tin and lead

Brass is made of – (1) copper and tin (2) tin and lead (3) copper and zinc (4) copper, tin and zinc

Description : Brass is made of – (1) copper and tin (2) tin and lead (3) copper and zinc (4) copper, tin and zinc

Last Answer : (3) copper and zinc Explanation: Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. By Comparison, bronze is principally an alloy of copper and tin.

What is used in storage batteries? (1) Copper (2) Tin (3) Lead (4) Zinc

Description : What is used in storage batteries? (1) Copper (2) Tin (3) Lead (4) Zinc

Last Answer : (3) Lead Explanation: The electrodes of the cells in a storage battery consist of lead grids. The openings of the anodic grid is filled with spongy (porous) lead. The openings of the cathodic grid ... ' storage batteries, can store a lot of charge and provide high current for short periods of time.

Solder metal is an alloy of – (1) lead and tin (2) lead and antimony (3) copper and zinc (4) copper and tin

Description : Solder metal is an alloy of – (1) lead and tin (2) lead and antimony (3) copper and zinc (4) copper and tin

Last Answer : (1) lead and tin Explanation: A solder is a fusible metal alloy of tin and lead with a melting point or melting range of 90 to 450°C, used in a process called soldering where it is melted to jain metallic surfaces. It is especially useful in electronics and plumbing.

Brass is an alloy of - (1) Lead and tin (2) Zine and copper (3) Antimony, tin and lead (4) Zinc, tin and copper

Description : Brass is an alloy of - (1) Lead and tin (2) Zine and copper (3) Antimony, tin and lead (4) Zinc, tin and copper

Last Answer : (2) Zine and copper Explanation: Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. By comparison ... , including alloys with arsenic, phosphorus, aluminium, manganese, and silicon, are commonly termed "brome".

Solder is an alloy of – (1) lead, zinc (2) copper, lead (3) tin, lead (4) sodium, lead

Description : Solder is an alloy of – (1) lead, zinc (2) copper, lead (3) tin, lead (4) sodium, lead

Last Answer : (3) tin, lead Explanation: Tin/lead solders, also called soft solders, are commercially available with tin concentrations between 5% and 70% by weight. The greater the tin concentration, the greater the solder ... at 370 °F or 188 °C and 63/37 Sn/Pb used principally in electrical/electronic work.

Which of the following metals form an amalgam with other metals? (1) Lead (2) Tin (3) Zinc (4) Mercury

Description : Which of the following metals form an amalgam with other metals? (1) Lead (2) Tin (3) Zinc (4) Mercury

Last Answer : (4) Mercury Explanation: An amalgam is a substance formed by the reaction of mercury with another metal. Almost all metals can form amalgams with mercury, notable exception being iron. Silver- ... "excellent and versatile restorative material" and is used in dentistry for a number of reasons.

The part of a fuse that melts and opens the circuit is made of _____________. A. copper and antimony B. steel and babbitt C. aluminum or beryllium alloy D. zinc or an alloy of tin and lead

Description : The part of a fuse that melts and opens the circuit is made of _____________. A. copper and antimony B. steel and babbitt C. aluminum or beryllium alloy D. zinc or an alloy of tin and lead

Last Answer : Answer: D

White metal is an alloy of (A) Lead, tin and cadmium (B) Copper, tin and zinc (C) Copper and lead (D) None of these

Description : White metal is an alloy of (A) Lead, tin and cadmium (B) Copper, tin and zinc (C) Copper and lead (D) None of these

Last Answer : (D) None of these

Bronze is an alloy of copper and (A) Lead (B) Tin (C) Nickel (D) Zinc

Description : Bronze is an alloy of copper and (A) Lead (B) Tin (C) Nickel (D) Zinc

Last Answer : (B) Tin

Babbitt metal (used for making bearings) comprises of (A) Mainly tin (85%) and lead (B) Saw dust and iron dust mixture (C) Zinc and aluminium (D) Copper and aluminium

Description : Babbitt metal (used for making bearings) comprises of (A) Mainly tin (85%) and lead (B) Saw dust and iron dust mixture (C) Zinc and aluminium (D) Copper and aluminium

Last Answer : (A) Mainly tin (85%) and lead

Muntz metal is a/an alloys of (A) Magnesium & tin (B) Ferrous material (C) Lead & tin (D) Copper & zinc

Description : Muntz metal is a/an alloys of (A) Magnesium & tin (B) Ferrous material (C) Lead & tin (D) Copper & zinc

Last Answer : (D) Copper & zinc

A metallic alloy in which one of the constituent metal is __________, is called an amalgam. (A) Zinc (B) Mercury (C) Lead (D) Tin

Description : A metallic alloy in which one of the constituent metal is __________, is called an amalgam. (A) Zinc (B) Mercury (C) Lead (D) Tin

Last Answer : (B) Mercury

German silver is an alloy of copper, nickel and (A) Zinc (B) Silver (C) Tin (D) LeadGerman silver is an alloy of copper, nickel and(A) Zinc(B) Silver(C) Tin(D) Lead

Description : German silver is an alloy of copper, nickel and (A) Zinc (B) Silver (C) Tin (D) Lead

Last Answer : (A) Zinc

Which of the following metals cannot be hot worked at room temperature? (A) Zinc (B) Nickel (C) Lead (D) Tin

Description : Which of the following metals cannot be hot worked at room temperature? (A) Zinc (B) Nickel (C) Lead (D) Tin

Last Answer : Option B

In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material? (A) Tin(B) Lead (C) Zinc (D) Glass

Description : In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material? (A) Tin (B) Lead (C) Zinc (D) Glass

Last Answer : Option D

Brass is an alloy of (A) Copper and zinc (B) Zinc and lead (C) Tin and silver (D) Zinc and nickel

Description : Brass is an alloy of (A) Copper and zinc (B) Zinc and lead (C) Tin and silver (D) Zinc and nickel

Last Answer : Answer: Option A

Galvanised Iron sheets have a coating of (1) Tin (2) Lead (3) Zinc (4) Chromium

Description : Galvanised Iron sheets have a coating of (1) Tin (2) Lead (3) Zinc (4) Chromium

Last Answer : (3) Zinc

What is used in storage batteries? (1) Copper (2) Tin (3) Lead (4) Zinc

Description : What is used in storage batteries? (1) Copper (2) Tin (3) Lead (4) Zinc

Last Answer : Lead

Brass is made of (1) copper and tin (2) tin and lead (3) copper and zinc (4) copper, tin and zinc

Description : Brass is made of (1) copper and tin (2) tin and lead (3) copper and zinc (4) copper, tin and zinc

Last Answer : copper and zinc

Solder metal is an alloy of (1) lead and tin (2) lead and antimony (3) copper and zinc (4) copper and tin

Description : Solder metal is an alloy of (1) lead and tin (2) lead and antimony (3) copper and zinc (4) copper and tin

Last Answer : lead and tin

Solder is an alloy of (1) lead, zinc (2) copper, lead (3) tin, lead (4) sodium, lead

Description : Solder is an alloy of (1) lead, zinc (2) copper, lead (3) tin, lead (4) sodium, lead

Last Answer : tin, lead

Brass is an alloy of (1) Lead and tin (2) Zinc and copper (3) Antimony, tin and lead (4) Zinc, tin and copper

Description : Brass is an alloy of (1) Lead and tin (2) Zinc and copper (3) Antimony, tin and lead (4) Zinc, tin and copper

Last Answer : Zinc and copper

Which of the following metals form an amalgam with other metals ? (1) Lead (2) Tin (3) Zinc (4) Mercury

Description : Which of the following metals form an amalgam with other metals ? (1) Lead (2) Tin (3) Zinc (4) Mercury

Last Answer : Mercury

Which metallic element is liquid at room temperature? A. Zinc B. Nickel C. Lead D. Mercury (Answer)

Description : Which metallic element is liquid at room temperature? A. Zinc B. Nickel C. Lead D. Mercury (Answer)

Last Answer : D. Mercury (Answer)

(i) Copper - Bessemer converter (ii) Iorpn- Blastfurnace (iii) chromium - Aluminothermic process (iv) Tin - Carbon reducaton (v) Zinc -Belgian process

Description : (i) Copper - Bessemer converter (ii) Iorpn- Blastfurnace (iii) chromium - Aluminothermic process (iv) Tin - Carbon reducaton (v) Zinc -Belgian process

Last Answer : (i) Copper - Bessemer converter (ii) Iorpn- Blastfurnace (iii) chromium - Aluminothermic process (iv ... data how many of them are correctly matched ?

Galvanised Iron sheets have a coating of------ A. Tin B. Silver C. Zinc (Answer) D. Chromium

Description : Galvanised Iron sheets have a coating of------ A. Tin B. Silver C. Zinc (Answer) D. Chromium

Last Answer : C. Zinc (Answer)

Bronze is an alloy of ------? A. Copper and Zinc B. Tin and Zinc C. Copper and Tin (Answer) D. Iron and Zinc E. None of these

Description : Bronze is an alloy of ------? A. Copper and Zinc B. Tin and Zinc C. Copper and Tin (Answer) D. Iron and Zinc E. None of these

Last Answer : C. Copper and Tin (Answer)

Bronze medal is made up of metals ? A. copper,nickel B. copper, tin (Answer) C. copper, silver D. copper, zinc

Description : Bronze medal is made up of metals ? A. copper,nickel B. copper, tin (Answer) C. copper, silver D. copper, zinc

Last Answer : B. copper, tin (Answer)

Lead pencils are made of?

Description : Lead pencils are made of?

Last Answer : Graphite - an allotrope of carbon

Why were pencils ever made with lead if it is bad for us?

Description : Why were pencils ever made with lead if it is bad for us?

Last Answer : A long time ago, people didn´t know that lead was bad for us. Sothey used what they found because it worked. Then it made peoplesick. So now we use graphite.

How did Robert fulton built his own lead pencils and rockets?

Description : How did Robert fulton built his own lead pencils and rockets?

Last Answer : Feel Free to Answer

Are lead pencils poisonous?

Description : Are lead pencils poisonous?

Last Answer : Despite the word lead, there is no lead metal in a lead pencil. Graphite is used, which is a minimally-toxiccarbon based substance.

Percentage of lead in lead pencils is (1) 0 (2) 31-66 (3) 40 (4) 80

Description : Percentage of lead in lead pencils is (1) 0 (2) 31-66 (3) 40 (4) 80

Last Answer :  0

Fuse wire is made of-------? A. 63% tin and 37% lead (Answer) B. 63% lead and 37% tin C. 63% tin and 37% aluminum D. 63% lead and 37% aluminum

Description : Fuse wire is made of-------? A. 63% tin and 37% lead (Answer) B. 63% lead and 37% tin C. 63% tin and 37% aluminum D. 63% lead and 37% aluminum

Last Answer : A. 63% tin and 37% lead (Answer)

Which of the following is used in Pencils? A. Graphite (Answer) B. Silicon C. Charcoal D. Phosphorous

Description : Which of the following is used in Pencils? A. Graphite (Answer) B. Silicon C. Charcoal D. Phosphorous

Last Answer : A. Graphite (Answer)

Whic of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc.? (1) Iron and cadmium (2) Nickel and cadmium (3) Lead peroxide and lead (4) Zinc and carbon

Description : Whic of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc.? (1) Iron and cadmium (2) Nickel and cadmium (3) Lead peroxide and lead (4) Zinc and carbon

Last Answer : (2) Nickel and cadmium Explanation: A rechargeable battery, storage battery, or accumulator is a type of electrical battery. It comprises one or more electrochemical cells, and is a ... sizes, ranging from button cells to megawatt systems connected to stabilize an electrical distribution network.

The storage battery generally used in electric power station is A. Nickel-cadmium battery B. Zinc carbon battery C. Lead-acid battery D. None of the above

Description : The storage battery generally used in electric power station is A. Nickel-cadmium battery B. Zinc carbon battery C. Lead-acid battery D. None of the above

Last Answer : C. Lead-acid battery

The storage battery generally used in electric power station is A] nickel-cadmium battery B] zinc-carbon battery C] lead-acid battery D] None of the above

Description : The storage battery generally used in electric power station is A] nickel-cadmium battery B] zinc-carbon battery C] lead-acid battery D] None of the above

Last Answer : C] lead-acid battery

Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? (1) Iron and cadmium (2) Nickel and cadmium (3) Lead peroxide and lead (4) Zinc and carbon

Description : Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? (1) Iron and cadmium (2) Nickel and cadmium (3) Lead peroxide and lead (4) Zinc and carbon

Last Answer : Nickel and cadmium

Which of the following statements is correct? I. German silver is an alloy of silver, copper and zinc II. There is no zinc in brass III. Bronze is an alloy of copper and tin (a) I, II, and III (b) Only III (c) I and III (d) I and II

Description : Which of the following statements is correct? I. German silver is an alloy of silver, copper and zinc II. There is no zinc in brass III. Bronze is an alloy of copper and tin (a) I, II, and III (b) Only III (c) I and III (d) I and II

Last Answer : Ans:(b)

In galvanization, iron is coated with – (1) Copper (2) Zinc (3) Tin (4) Nickel

Description : In galvanization, iron is coated with – (1) Copper (2) Zinc (3) Tin (4) Nickel

Last Answer : (2) 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 galvanization, in which parts are submerged in a bath of molten zinc.

Brass contains – (1) Copper and Zinc (2) Copper and Tin (3) Copper and Silver (4) Copper and Nickel

Description : Brass contains – (1) Copper and Zinc (2) Copper and Tin (3) Copper and Silver (4) Copper and Nickel

Last Answer : (1) Copper and Zinc Explanation: Brass is an alloy made of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. By comparison, bronze is principally an alloy of copper and tin.

Bronze is an alloy of – (1) Copper & tin (2) Copper & zinc (3) Copper & iron (4) Iron & nickel

Description : Bronze is an alloy of – (1) Copper & tin (2) Copper & zinc (3) Copper & iron (4) Iron & nickel

Last Answer : (1) Copper & tin Explanation: Bronze is an alloy consisting primarily of copper, commonly with about 12% tin and often with the addition of other metals (such as aluminium, manganese, nickel or zinc ... produce a range of alloys that may be harder than copper alone, or have other useful properties.

Bronze is an alloy of – (1) Copper and Zinc (2) Tin and Zinc (3) Copper and Tin (4) Iron and Zinc

Description : Bronze is an alloy of – (1) Copper and Zinc (2) Tin and Zinc (3) Copper and Tin (4) Iron and Zinc

Last Answer : (3) Copper and Tin Explanation: Bronze is a metal alloy consisting primarily of copper, usually with tin as the main additive. It is hard and tough, and it was particularly significant in ... the more inclusive term "copper alloy" instead. Historically the term latten was used for such alloys.