Lead pencil contains - (1) Lead nitrate (2) Graphite (3) Lead peroxide (4) Lead Sulphate

Lead pencil contains - (1) Lead nitrate (2) Graphite (3) Lead peroxide (4) Lead Sulphate
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(2) Graphite Explanation: Most pencil cores are made of graphite mixed with a clay binder which leaves grey or black marks that can be easily erased.
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Lead pencil contains – (1) lead (2) ferrous sulphide (3) lead sulphide (4) graphite

Description : Lead pencil contains – (1) lead (2) ferrous sulphide (3) lead sulphide (4) graphite

Last Answer : (4) graphite Explanation: Most pencil cores are made of graphite mixed with a clay binder, leaving grey or black marks that can be easily erased. Graphite pencils are used for both writing ... with an eraser, it is resistant to moisture, most chemicals, ultraviolet radiation and natural aging.

Lead pencil contains (1) lead (2) ferrous sulphide (3) lead sulphide (4) graphite

Description : Lead pencil contains (1) lead (2) ferrous sulphide (3) lead sulphide (4) graphite

Last Answer : graphite

Lead pencil contains (A) Graphite (B) Lead sulphide (C) Lead (D) Both (B) & (C)

Description : Lead pencil contains (A) Graphite (B) Lead sulphide (C) Lead (D) Both (B) & (C)

Last Answer : A) Graphite

The material used in the manufacture of lead pencil is – (1) Graphite (2) Lead (3) Carbon (4) Mica

Description : The material used in the manufacture of lead pencil is – (1) Graphite (2) Lead (3) Carbon (4) Mica

Last Answer : (1) Graphite Explanation: Pencils create marks via physical abrasion, leaving behind a trail of solid core material that adheres to a sheet of paper or other surface. They are noticeably distinct from ... of graphite mixed with a clay binder, leaving grey or black marks that can be easily erased.

The material used in the manufacture of lead pencil is (1) Graphite (2) Lead (3) Carbon (4) Mica

Description : The material used in the manufacture of lead pencil is (1) Graphite (2) Lead (3) Carbon (4) Mica

Last Answer : Graphite

Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric acid) 7. Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Description : Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric ... Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Last Answer : 1. Copper oxide - CuO 2. Iron (III) chloride - FeCl3 3. Sodium hydroxide - NaOH 4. Iron (II) sulphide - FeS 5. Lead (II) oxide - PbO 6. Hydrogen nitrate (nitric acid) - HNO3 7. ... ) - H2SO4 8. Calcium hydroxide - Ca(OH)2 9. Magnesium carbonate - MgCO3 10.Ammonium carbonate - (NH4)2CO3

The substance that contains the maximum amount of nitrogen is (a) urea (b) ammonium sulphate (c) ammonium nitrate (d) ammonium chloride

Description : The substance that contains the maximum amount of nitrogen is (a) urea (b) ammonium sulphate (c) ammonium nitrate (d) ammonium chloride

Last Answer : Ans:(a)

Can I use a 4b graphite pencil for regular drawing?

Description : Can I use a 4b graphite pencil for regular drawing?

Last Answer : Why not try it and see whether it suits your particular needs?

Lead pencil contains

Description : Lead pencil contains

Last Answer : Graphite

What does air bags, used for safety of car driver contain? 1.sodium bicarbonate. 2.sodium azide 3.sodium nitrate 4.sodium peroxide

Description : What does air bags, used for safety of car driver contain? 1.sodium bicarbonate. 2.sodium azide 3.sodium nitrate 4.sodium peroxide

Last Answer : 2.sodium azide

(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:

The chemical name of "Plaster of Paris" commonly used for setting broken bones is – (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride

Description : The chemical name of "Plaster of Paris" commonly used for setting broken bones is – (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride

Last Answer : (2) Calcium sulphate Explanation: Plaster of Paris is the common name of Calcium Sulphate hemihydrate, with chemical formula: CaSO4.1/2H2O. Plaster of Paris is produced by heating gypsum to about 150°C.

Which of the following is not a nitrogenous fetiliser? (1) Ammonium sulphate (2) Urea (3) Ammonium nitrate (4) Superphosphate

Description : Which of the following is not a nitrogenous fetiliser? (1) Ammonium sulphate (2) Urea (3) Ammonium nitrate (4) Superphosphate

Last Answer : (4) Superphosphate Explanation: Superphosphateis a common synthetic phosphorus fertilizer. It contains phosphorus and sulphur in a ratio of 1 to 1.22. It is produced by treatment of "phosphate rock" with ... form of phosphorus usable by plants, and is one of the world's most important fertilizers.

Aluminium salt commonly used to stop bleeding is - (1) Aluminium nitrate (2) Aluminium sulphate (3) Aluminium Chloride (4) Potash alum

Description : Aluminium salt commonly used to stop bleeding is - (1) Aluminium nitrate (2) Aluminium sulphate (3) Aluminium Chloride (4) Potash alum

Last Answer : (2) Aluminium sulphate Explanation: Alum (Aluminium Sulfate) is used to stop bleeding. For example, Styptic pencils containing aluminium sulfate are used as astringents to prevent bleeding from small shaving cuts. It constricts blood vessels to stop the flow of blood.

Which of the following is not a nitrogenous fertilizer? (1) Ammonium sulphate (2) Urea (3) Ammonium nitrate (4) Superphosphate

Description : Which of the following is not a nitrogenous fertilizer? (1) Ammonium sulphate (2) Urea (3) Ammonium nitrate (4) Superphosphate

Last Answer : (4) Superphosphate Explanation: Superphosphate is a common synthetic phosphorus fertilizer.

Extensively used nitrogenous fertilizer is – (1) Ammonium nitrate (2) Urea (3) Ammonium sulphate (4) Nitro-lime

Description : Extensively used nitrogenous fertilizer is – (1) Ammonium nitrate (2) Urea (3) Ammonium sulphate (4) Nitro-lime

Last Answer : (2) Urea Explanation: More than 90% of world production of urea is destined for use as a nitrogen-release fertilizer. Urea has the highest nitrogen content of all solid nitrogenous fertilizers in common use. Therefore, it has the lowest transportation costs per unit of nitrogen nutrient.

Which one of the following is not a fertilizer? (1) Ammonium sulphate (2) Calcium sulphate (3) Calcium ammonium nitrate (4) Potassium nitrate

Description : Which one of the following is not a fertilizer? (1) Ammonium sulphate (2) Calcium sulphate (3) Calcium ammonium nitrate (4) Potassium nitrate

Last Answer : (2) Calcium sulphate Explanation: Calcium sulfate is a common laboratory and industrial chemical. In the form of -anhydrite (the nearly anhydrous form), it is used as a desiccant. ... calcium sulfate are naturally occurring gypsum and anhydrite which occur at many locations worldwide as evaporites.

Fertiliser having high nitrogen content is – (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate

Description : Fertiliser having high nitrogen content is – (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate

Last Answer : (3) Ammonium nitrate Explanation: A growth fertilizer will have a high N content and relatively low P and K content. Ammonium nitrate is the highest Nitrogen fertilizer you can buy, and it is ... formulations of growth fertilizers will contain 5, 6 or even 7 times more Nitrogen than anything else.

In the electroplating of gold, the electrolyte used is – (1) Gold chloride (2) Gold nitrate (3) Gold sulphate (4) Potassium aurocyanide

Description : In the electroplating of gold, the electrolyte used is – (1) Gold chloride (2) Gold nitrate (3) Gold sulphate (4) Potassium aurocyanide

Last Answer : (3) Gold sulphate Explanation: Gold plating is a method of depositing a thin layer of gold onto the surface of another metal, most often copper or silver (to make silver-gilt), ... sulfite based electrolyte. This product is environment and user friendly and moreover the electroplating rate is good.

Which of the following is not a nitrogenous fetiliser? (1) Ammonium sulphate (2) Urea (3) Ammonium nitrate (4) Superphosphate

Description : Which of the following is not a nitrogenous fetiliser? (1) Ammonium sulphate (2) Urea (3) Ammonium nitrate (4) Superphosphate

Last Answer : Superphosphate

Aluminium salt commonly used to stop bleeding is (1) Aluminium nitrate (2) Aluminium sulphate (3) Aluminium Chloride (4) Potash alum

Description : Aluminium salt commonly used to stop bleeding is (1) Aluminium nitrate (2) Aluminium sulphate (3) Aluminium Chloride (4) Potash alum

Last Answer : Aluminium sulphate

The chemical name of “Plaster of Paris” commonly used for setting broken bones is (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride

Description : The chemical name of “Plaster of Paris” commonly used for setting broken bones is (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride

Last Answer :  Calcium sulphate

In the electroplating of gold, the electrolyte used is (1) Gold chloride (2) Gold nitrate (3) Gold sulphate (4) Potassium aurocyanide

Description : In the electroplating of gold, the electrolyte used is (1) Gold chloride (2) Gold nitrate (3) Gold sulphate (4) Potassium aurocyanide

Last Answer : Gold sulphate

Extensively used nitrogenous fertilizer is (1) Ammonium nitrate (2) Urea (3) Ammonium sulphate (4) Nitro-lime

Description : Extensively used nitrogenous fertilizer is (1) Ammonium nitrate (2) Urea (3) Ammonium sulphate (4) Nitro-lime

Last Answer : Urea

Which one of the following is not a fertilizer? (1) Ammonium sulphate (2) Calcium sulphate (3) Calcium ammonium nitrate (4) Potassium nitrate

Description : Which one of the following is not a fertilizer? (1) Ammonium sulphate (2) Calcium sulphate (3) Calcium ammonium nitrate (4) Potassium nitrate

Last Answer : Calcium sulphate 

Ammonial is a mixture of (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate

Description : Ammonial is a mixture of (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate

Last Answer : aluminium powder and ammonium nitrate

Fertiliser having high nitrogen content is : (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate

Description : Fertiliser having high nitrogen content is : (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate

Last Answer : Ammonium nitrate

Which of the following is used as a coagulant in water treatment? (A) Chloramine (B) Chlorine (C) Ferrous sulphate (D) Hydrogen peroxide

Description : Which of the following is used as a coagulant in water treatment? (A) Chloramine (B) Chlorine (C) Ferrous sulphate (D) Hydrogen peroxide

Last Answer : (C) Ferrous sulphate

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.

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 fertilisers provides maximum amount of nitrogen? (a) Calcium Nitrate (b) Urea (c) Ammonium Sulphate (d) Nitrolium

Description : Which of the following fertilisers provides maximum amount of nitrogen? (a) Calcium Nitrate (b) Urea (c) Ammonium Sulphate (d) Nitrolium

Last Answer : Ans: (b)

What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.

Description : What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.

Last Answer : a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. After a few hours a coating of copper is seen on iron nail/plate. It is based on displacement reaction. ... on the inner walls of the test tube. Aldehyde group in glucose reduced silver nitrate to metallic silver.

What is the main component of bones and teeth? A. Calcium carbonate B. Calcium phosphate (Answer) C. Calcium sulphate D. Calcium nitrate

Description : What is the main component of bones and teeth? A. Calcium carbonate B. Calcium phosphate (Answer) C. Calcium sulphate D. Calcium nitrate

Last Answer : B. Calcium phosphate (Answer)

The most Suited N fertilizer for tea is: (A) Urea (B) Calcium nitrate (C) Ammonium chloride (D) Ammonium sulphate

Description : The most Suited N fertilizer for tea is: (A) Urea (B) Calcium nitrate (C) Ammonium chloride (D) Ammonium sulphate

Last Answer : (D) Ammonium sulphate

The most Suited N fertilizer for tea is: (A) Urea (B) Calcium nitrate (C) Ammonium chloride (D) Ammonium sulphate

Description : The most Suited N fertilizer for tea is: (A) Urea (B) Calcium nitrate (C) Ammonium chloride (D) Ammonium sulphate

Last Answer : (A) Urea

Which fertilizer is most beneficial for alkali soils? (a) Urea (b) Ammonium sulphate (c) Calcium ammonium nitrate (d) Ammonium nitrate

Description : Which fertilizer is most beneficial for alkali soils? (a) Urea (b) Ammonium sulphate (c) Calcium ammonium nitrate (d) Ammonium nitrate

Last Answer : (c) Calcium ammonium nitrate

Which of the ‘complex fertilizer’? 1) Ammonium sulphate nitrate 2) Single superphosphate 3) Ammonium phosphate 4) Calcium ammonium nitrate

Description : Which of the ‘complex fertilizer’? 1) Ammonium sulphate nitrate 2) Single superphosphate 3) Ammonium phosphate 4) Calcium ammonium nitrate

Last Answer : 3) Ammonium phosphate

Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant? (A) Ammonium sulphate (B) Ammonium nitrate (C) Ammonium phosphate (D) None of these

Description : Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant? (A) Ammonium sulphate (B) Ammonium nitrate (C) Ammonium phosphate (D) None of these

Last Answer : (A) Ammonium sulphate

Which type of N-fertilizer is suitable for water-logged soil? a) Zinc Phosphet b) Ammonium Sulphate c) Calcium d) Potassium Nitrate

Description : Which type of N-fertilizer is suitable for water-logged soil? a) Zinc Phosphet b) Ammonium Sulphate c) Calcium d) Potassium Nitrate

Last Answer : b) Ammonium Sulphate

Which is the best fertiliser for paddy? (A) Ammonium sulphate (B) Nitro-phosphate (C) Superphosphate (D) Potassium nitrate

Description : Which is the best fertiliser for paddy? (A) Ammonium sulphate (B) Nitro-phosphate (C) Superphosphate (D) Potassium nitrate

Last Answer : (A) Ammonium sulphate

Which of the following fertilisers is used as a cattle feed?(A) Urea (B) Calcium ammonium nitrate (C) Superphosphate (D) Ammonium sulphate

Description : Which of the following fertilisers is used as a cattle feed? (A) Urea (B) Calcium ammonium nitrate (C) Superphosphate (D) Ammonium sulphate

Last Answer : (A) Urea

__________ is not a fertiliser. (A) Calcium ammonium nitrate (B) Ferrous sulphate (C) Liquid ammonia (D) Ammonium sulphate

Description : __________ is not a fertiliser. (A) Calcium ammonium nitrate (B) Ferrous sulphate (C) Liquid ammonia (D) Ammonium sulphate

Last Answer : (B) Ferrous sulphate

Fertiliser produced during soda ash manufacture by dual process is ammonium (A) Chloride (B) Sulphate (C) Nitrate (D) None of these

Description : Fertiliser produced during soda ash manufacture by dual process is ammonium (A) Chloride (B) Sulphate (C) Nitrate (D) None of these

Last Answer : (A) Chloride

Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? (A) Calcium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium sulphate

Description : Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? (A) Calcium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium sulphate

Last Answer : (C) Urea

Out of the following, N2 content is minimum in (A) Urea (B) Ammonium nitrate (C) Ammonium sulphate (D) Ammonium chloride

Description : Out of the following, N2 content is minimum in (A) Urea (B) Ammonium nitrate (C) Ammonium sulphate (D) Ammonium chloride

Last Answer : (C) Ammonium sulphate

Which is the most suitable fertiliser for paddy? (A) CAN (B) Ammonium sulphate (C) Ammonium nitrate (D) Superphosphate

Description : Which is the most suitable fertiliser for paddy? (A) CAN (B) Ammonium sulphate (C) Ammonium nitrate (D) Superphosphate

Last Answer : (B) Ammonium sulphate

__________ is the most suitable fertiliser for paddy. (A) Urea (B) Ammonium sulphate (C) Superphosphate (D) Potassium nitrate

Description : __________ is the most suitable fertiliser for paddy. (A) Urea (B) Ammonium sulphate (C) Superphosphate (D) Potassium nitrate

Last Answer : (B) Ammonium sulphate

Maximum nitrogen percentage is in (A) Ammonium sulphate (B) Calcium ammonium nitrate (C) Urea (D) Liquid ammonia

Description : Maximum nitrogen percentage is in (A) Ammonium sulphate (B) Calcium ammonium nitrate (C) Urea (D) Liquid ammonia

Last Answer : (D) Liquid ammonia

Nitrogen content of a nitrogenous fertiliser is 35%. It could be (A) Urea (B) Ammonium nitrate (C) Calcium ammonium nitrate (CAN) (D) Ammonium sulphate

Description : Nitrogen content of a nitrogenous fertiliser is 35%. It could be (A) Urea (B) Ammonium nitrate (C) Calcium ammonium nitrate (CAN) (D) Ammonium sulphate

Last Answer : (B) Ammonium nitrate

Blue vitriol is chemically (A) Copper sulphate (B) Ferrous sulphate (C) Copper nitrate (D) Aluminium sulphate

Description : Blue vitriol is chemically (A) Copper sulphate (B) Ferrous sulphate (C) Copper nitrate (D) Aluminium sulphate

Last Answer : (A) Copper sulphate