The tip of the match-stick contains (1) phosphorus pentoxide (2) white phosphorus (3) red phosphorus (4) phosphorus trichloride

The tip of the match-stick contains (1) phosphorus pentoxide (2) white phosphorus (3) red phosphorus (4) phosphorus trichloride
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 red phosphorus
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The tip of the match-stick contains – (1) phosphorus pentoxide (2) white phosphorus (3) red phosphorus (4) phosphorus trichloricle

Description : The tip of the match-stick contains – (1) phosphorus pentoxide (2) white phosphorus (3) red phosphorus (4) phosphorus trichloricle

Last Answer : (3) red phosphorus Explanation: A typical modern match is made of a small wooden stick or stiff paper. One end is coated with a material that can be ignited by frictional heat generated by ... in rows stapled into matchbooks. They are commonly sold by tobacconists and many other kinds of shops.

Tip of the match stick contains a mixture of (A) K + S (B) K + S + K2Cr2O7 (C) S + K2Cr2O7 + White P (D) None of these

Description : Tip of the match stick contains a mixture of (A) K + S (B) K + S + K2Cr2O7 (C) S + K2Cr2O7 + White P (D) None of these

Last Answer : (C) S + K2Cr2O7 + White P

Tip of match-stick contains

Description : Tip of match-stick contains

Last Answer : Red phosphorous

Which of the following substances would be the best choice to neutralize sulfuric acid? w) sodium hydroxide x) silicon dioxide y) copper metal z) phosphorus pentoxide

Description : Which of the following substances would be the best choice to neutralize sulfuric acid? w) sodium hydroxide x) silicon dioxide y) copper metal z) phosphorus pentoxide

Last Answer : ANSWER: W -- SODIUM HYDROXIDE

Which of the following substances would be the best choice to neutralize aqueous Sodium Hydroxide? w) sodium carbonate x) silicon dioxide y) aluminum oxide z) phosphorus pentoxide

Description : Which of the following substances would be the best choice to neutralize aqueous Sodium Hydroxide? w) sodium carbonate x) silicon dioxide y) aluminum oxide z) phosphorus pentoxide

Last Answer : ANSWER: Z -- PHOSPHORUS PENTOXIDE

What are the chemical signals of phosphorus trichloride ?

Last Answer : : Chemical signal of phosphorus trichloride PCl3

Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula :

Description : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula :

Last Answer : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula : ... 3)PO_(4)` D. `H_(3)PO_(2)`

Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula :

Description : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula :

Last Answer : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula : ... 3)PO_(4)` D. `H_(3)PO_(2)`

Is phosphorus pentoxide ionic or covalent bond?

Description : Is phosphorus pentoxide ionic or covalent bond?

Last Answer : Phosphorus pentoxide is a covalent bond, not a ionic.-Emiko Bunny

Match sticks are made of - (1) Red phosphorus (2) blue phosphorus (3) led nitrate (4) None

Description : Match sticks are made of - (1) Red phosphorus (2) blue phosphorus (3) led nitrate (4) None

Last Answer : (1) Red phosphorus Explanation: Red phosphorus is used in matches. Ferrophosphorus, a combination of phosphorus with iron, is used as an ingredient in high-strength low-alloy steel.

Which one of the following forms of phosphorus is most reactive? (1) Black phosphorus (2) White phosphorus (3) Violet phosphorus (4) Red phosphorus

Description : Which one of the following forms of phosphorus is most reactive? (1) Black phosphorus (2) White phosphorus (3) Violet phosphorus (4) Red phosphorus

Last Answer : (2) White phosphorus Explanation: White phosphorus is the most reactive form of phosphorus. It is made up of discrete P4 tetrahedra which are subjected to very high angular strain as the angles ... reactive. It ignites spontaneously at about 50°C, and at much lower temperatures if finely divided.

Allotropic modifications of phosphorus include each of the following EXCEPT: w) red phosphorus x) black phosphorus y) white phosphorus z) green phosphorus

Description : Allotropic modifications of phosphorus include each of the following EXCEPT: w) red phosphorus x) black phosphorus y) white phosphorus z) green phosphorus

Last Answer : ANSWER: Z -- GREEN PHOSPHORUS

Which one of the following forms of phosphorus is most reactive? (1) Black phosphorus (2) White phosphorus (3) Violet phosphorus (4) Red phosphorus

Description : Which one of the following forms of phosphorus is most reactive? (1) Black phosphorus (2) White phosphorus (3) Violet phosphorus (4) Red phosphorus

Last Answer : White phosphorus

Give reasons: a) Phosphorous pentachloride is unstable. b) Phosphorous trichloride fumes in moisture.

Description : Give reasons: a) Phosphorous pentachloride is unstable. b) Phosphorous trichloride fumes in moisture.

Last Answer : Ans: a) Because of two longer axial bonds. b) Because it reacts with water and forms hydrochloric acid. 

Laughing gas is – (1) Nitric oxide (2) Nitrous oxide (3) Nitrogen trioxide (4) Nitrogen pentoxide

Description : Laughing gas is – (1) Nitric oxide (2) Nitrous oxide (3) Nitrogen trioxide (4) Nitrogen pentoxide

Last Answer : (2) Nitrous oxide Explanation: Laughing gas is Nitrous Oxide (N2O).

The chemical name of “laughing gas” is - (1) Nitric oxide (2) Nitrogen dioxide (3) Nitrogen pentoxide (4) Nitrous oxide

Description : The chemical name of “laughing gas” is - (1) Nitric oxide (2) Nitrogen dioxide (3) Nitrogen pentoxide (4) Nitrous oxide

Last Answer : (4) Nitrous oxide Explanation: Nitrous oxide, commonly known as laughing gas, is a chemical compound with the formula N2O. It is used in surgery and dentistry for its anesthetic and analgesic effects ... of inhaling it, a property that has led to its recreational use as a dissociative anesthetic.

Laughing gas is (1) Nitric oxide (2) Nitrous oxide (3) Nitrogen trioxide (4) Nitrogen pentoxide

Description : Laughing gas is (1) Nitric oxide (2) Nitrous oxide (3) Nitrogen trioxide (4) Nitrogen pentoxide

Last Answer : Nitrous oxide

The chemical name of “laughing gas’ is (1) Nitric oxide (2) Nitrogen dioxide (3) Nitrogen pentoxide (4) Nitrous oxide

Description : The chemical name of “laughing gas’ is (1) Nitric oxide (2) Nitrogen dioxide (3) Nitrogen pentoxide (4) Nitrous oxide

Last Answer :  Nitrous oxide

When I move, I tip the scales. I am the source of many tales. Around your foot, a sign of wealth. Around a stick, a sign of health. Around your chest, your final breath. On your neck, say hi to death. What am I? -Riddles

Description : When I move, I tip the scales. I am the source of many tales. Around your foot, a sign of wealth. Around a stick, a sign of health. Around your chest, your final breath. On your neck, say hi to death. What am I? -Riddles

Last Answer : A snake. Snake scales. Snake Tail and snakes are usually the antagonists. Snakeskin is very expensive. Snakes on a stick are almost always seen in hospitals. Constrictors squeeze the life out of you. A poisonous snakebite on your neck would kill you extremely fast.

White Phosphorus may be removed from red Phosphorus by

Description : White Phosphorus may be removed from red Phosphorus by

Last Answer : White Phosphorus may be removed from red Phosphorus by A. sublimation under reduced pressure B. dissolving ... (2)` D. heating with an alkali solution

Red phosphorus may be prepared from white phosphorus by :

Description : Red phosphorus may be prepared from white phosphorus by :

Last Answer : Red phosphorus may be prepared from white phosphorus by : A. adding red colour to white ... white phosphorus at high pressure and 473 k temperature

Red and white phosphorus will differ but not in:

Description : Red and white phosphorus will differ but not in:

Last Answer : Red and white phosphorus will differ but not in: A. smell B. solubility in `CHCl_(3)` ... phosphorescence D. reaction with concentrated `HNO_(3)`

White Phosphorus may be removed from red Phosphorus by

Description : White Phosphorus may be removed from red Phosphorus by

Last Answer : White Phosphorus may be removed from red Phosphorus by A. sublimation under reduced pressure B. dissolving ... (2)` D. heating with an alkali solution

Red phosphorus may be prepared from white phosphorus by :

Description : Red phosphorus may be prepared from white phosphorus by :

Last Answer : Red phosphorus may be prepared from white phosphorus by : A. adding red colour to white ... white phosphorus at high pressure and 473 k temperature

Red and white phosphorus will differ but not in:

Description : Red and white phosphorus will differ but not in:

Last Answer : Red and white phosphorus will differ but not in: A. smell B. solubility in `CHCl_(3)` ... phosphorescence D. reaction with concentrated `HNO_(3)`

White phosphorus and Red phosphorus

Description : White phosphorus and Red phosphorus

Last Answer : Find out the difference between : White phosphorus and Red phosphorus

Which statement regarding iodine trichloride is Incorrect.

Description : Which statement regarding iodine trichloride is Incorrect.

Last Answer : Which statement regarding iodine trichloride is Incorrect. A. (A) It forms dimer in gaseous state ... a mixture of iodous acid and hydrochloric acid.

What is the mass of 4.75 moles of arsenic trichloride?

Description : What is the mass of 4.75 moles of arsenic trichloride?

Last Answer : 4,75 moles of arsenic trichloride (AsCl3) is equal to 181,28 g.

Use complete sentences to explain why AlCl3 is called “aluminum chloride” (no prefix required), but BCl3 is called “boron trichloride.”?

Description : Use complete sentences to explain why AlCl3 is called “aluminum chloride” (no prefix required), but BCl3 is called “boron trichloride.”?

Last Answer : Ionic compounds do not have prefixes but covalent compounds have prefixes. “Aluminum chloride” is a ionic compound and "boron tri-chloride” is a covalent compound.

The substances that can be used as explosives are 1. phosphorous trichloride 2. mercuric oxide 3. trinitrotoluene 4. nitroglycerine The correct answers are: (a) 1 and 2 (b) 2 and 4 (c) 2 and 3 (d) 3 and 4

Description : The substances that can be used as explosives are 1. phosphorous trichloride 2. mercuric oxide 3. trinitrotoluene 4. nitroglycerine The correct answers are: (a) 1 and 2 (b) 2 and 4 (c) 2 and 3 (d) 3 and 4

Last Answer : Ans:(d)

To effectively clean a commutator in good physical condition, you should use ____________. A. trichloride ethylene B. kerosene C. a canvas wiper D. a commutator stone

Description : To effectively clean a commutator in good physical condition, you should use ____________. A. trichloride ethylene B. kerosene C. a canvas wiper D. a commutator stone

Last Answer : Answer: C

The use and transfer of energy in all cells involves the same compound, ATP. The letters ATP stand for the chemical: a) atrophine trichloride b) aluminum trioxide c) adenosine triphosphate d) none of the above

Description : The use and transfer of energy in all cells involves the same compound, ATP. The letters ATP stand for the chemical: a) atrophine trichloride b) aluminum trioxide c) adenosine triphosphate d) none of the above

Last Answer : ANSWER: C -- ADENOSINE TRIPHOSPHATE

Match the oxy-acids of phosphorus listed in column-I with type of bond (s) listed in column -II

Description : Match the oxy-acids of phosphorus listed in column-I with type of bond (s) listed in column -II

Last Answer : Match the oxy-acids of phosphorus listed in column-I with type of bond (s) listed in column -II

Match the oxy-acids of phosphorus listed in column-I with type of bond (s) listed in column -II

Description : Match the oxy-acids of phosphorus listed in column-I with type of bond (s) listed in column -II

Last Answer : Match the oxy-acids of phosphorus listed in column-I with type of bond (s) listed in column -II

White phosphorus is generally kept under – (1) Alcohol (2) Water (3) Glycerine (4) Kerosene oil

Description : White phosphorus is generally kept under – (1) Alcohol (2) Water (3) Glycerine (4) Kerosene oil

Last Answer : (2) Water Explanation: White phosphorous is kept under water because it reacts with oxygen but not water. Besides, it is insoluble in water. It presents a significant fire hazard due to its extreme reactivity with atmospheric oxygen.

White phosphorus is always kept under (1) benzene (2) kerosene (3) ether (4) water

Description : White phosphorus is always kept under (1) benzene (2) kerosene (3) ether (4) water

Last Answer : (4) water Explanation: White phosphorus is a material made from a common allotrope of the chemical element phosphorus that is used in smoke, tracer, illumination and incendiary munitions. Other common names include WP ... on fire, and cause serious burns or death and that is why it is kept in water.

White phosphorus is generally kept under (1) Alcohol (2) Water (3) Glycerine (4) Kerosene oil

Description : White phosphorus is generally kept under (1) Alcohol (2) Water (3) Glycerine (4) Kerosene oil

Last Answer : Water

White phosphorus is always kept under (1) benzene (2) kerosene (3) ether (4) water

Description : White phosphorus is always kept under (1) benzene (2) kerosene (3) ether (4) water

Last Answer : water

The product obtained when propanamide is distilled with phosphorous pentoxide is `(CH_3CH_(2)CO)_(2)O`

Description : The product obtained when propanamide is distilled with phosphorous pentoxide is `(CH_3CH_(2)CO)_(2)O`

Last Answer : The product obtained when propanamide is distilled with phosphorous pentoxide is `(CH_3CH_(2)CO)_(2)O` A. `CH_(3) ... . `(CH_(3)CH_(2)COO)_(3)PO` D.

What is dinitrogen pentoxide plus water?

Description : What is dinitrogen pentoxide plus water?

Last Answer : The chemical reaction isȘN2O5 + H2O = 2 HNO3

How much would two moles of dinitrogen pentoxide weigh?

Description : How much would two moles of dinitrogen pentoxide weigh?

Last Answer : The chemical formula of dinitrogen pentoxide is N2O5 . We can calculate its molar mass (mass of one mole) by multiplying the subscript of each element by its molar mass (atomic weight on the Periodic Table in grams/mole) ... g/mol N2O5The mass of two moles of N2O5 is (2 x 108 g/mol N2O5 ) = 216 g

The compound that IS NOT responsible for acid rain is (a) nitrogen dioxide (b) nitrogen pentoxide (c) Sulphur dioxide (d) carbon monoxide

Description : The compound that IS NOT responsible for acid rain is (a) nitrogen dioxide (b) nitrogen pentoxide (c) Sulphur dioxide (d) carbon monoxide

Last Answer : Ans:(d)

Catalyst used in the catalytic cracking is (A) Silica-alumina (B) Silica gel (C) Vanadium pentoxide (D) Nickel

Description : Catalyst used in the catalytic cracking is (A) Silica-alumina (B) Silica gel (C) Vanadium pentoxide (D) Nickel

Last Answer : (A) Silica-alumina

Catalyst used in the catalytic polymerisation is (A) Phosphoric acid on kieselguhr (B) Aluminium chloride (C) Nickel (D) Vanadium pentoxide

Description : Catalyst used in the catalytic polymerisation is (A) Phosphoric acid on kieselguhr (B) Aluminium chloride (C) Nickel (D) Vanadium pentoxide

Last Answer : (A) Phosphoric acid on kieselguhr

The chemical name of Laughing gas is------? A. Nitric oxide B. Nitrogen dioxide C. Nitrogen pentoxide D. Nitrous oxide (Answer)

Description : The chemical name of Laughing gas is------? A. Nitric oxide B. Nitrogen dioxide C. Nitrogen pentoxide D. Nitrous oxide (Answer)

Last Answer : D. Nitrous oxide (Answer)

Catalyst used in the manufacture of NH3 by Haber's process is finely divided (A) Nickel (B) Iron (C) Vanadium pentoxide (D) Alumina

Description : Catalyst used in the manufacture of NH3 by Haber's process is finely divided (A) Nickel (B) Iron (C) Vanadium pentoxide (D) Alumina

Last Answer : (B) Iron

Catalyst used in Haber's process for ammonia production is (A) Reduced iron oxide (B) Nickel (C) Vanadium pentoxide (D) Silica gel

Description : Catalyst used in Haber's process for ammonia production is (A) Reduced iron oxide (B) Nickel (C) Vanadium pentoxide (D) Silica gel

Last Answer : (A) Reduced iron oxide

Reaction of Cresylic acid with __________ produces Tricresyl phosphate.(A) Phosphorous pentoxide (B) Phosphorous oxychloride (C) Ammonium phosphate (D) Calcium phosphate

Description : Reaction of Cresylic acid with __________ produces Tricresyl phosphate.. (A) Phosphorous pentoxide (B) Phosphorous oxychloride (C) Ammonium phosphate (D) Calcium phosphate

Last Answer : (B) Phosphorous oxychloride

__________ catalyst is used in the production of urea from CO2 and NH3 . (A) Vanadium pentoxide (B) No (C) Alumina (D) Nicke

Description : __________ catalyst is used in the production of urea from CO2 and NH3 . (A) Vanadium pentoxide (B) No (C) Alumina (D) Nicke

Last Answer : (B) No