Glyoxal (CHOCHO) on being heated with concentrated NaOH forms

Glyoxal (CHOCHO) on being heated with concentrated NaOH forms
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Glyoxal (CHOCHO) on being heated with concentrated NaOH forms
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Glyoxal (CHOCHO) on being heated with concentrated NaOH forms

Description : Glyoxal (CHOCHO) on being heated with concentrated NaOH forms

Last Answer : Glyoxal (CHOCHO) on being heated with concentrated NaOH forms

When benzaldehyde is heated with concentrated NaOH, it gives : (a) Benzyl alcohol (b) Sodium benzoate (c) Benzoic acid (d) Benzyl alcohol + Sodium benzoate

Description : When benzaldehyde is heated with concentrated NaOH, it gives : (a) Benzyl alcohol (b) Sodium benzoate (c) Benzoic acid (d) Benzyl alcohol + Sodium benzoate

Last Answer : Benzyl alcohol + Sodium benzoate

P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When the mixture of R and S is heated with NaOH

Description : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When the mixture of R and S is heated with NaOH

Last Answer : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When ... ))overset(|)(C)-CH_(2)-CH=O+CH_(2)=O`

P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When the mixture of R and S is heated with NaOH

Description : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When the mixture of R and S is heated with NaOH

Last Answer : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. ... (|)overset(CH_(3))overset(|)(C)-CH=CH_(2)`

P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When the mixture of R and S is heated with NaOH

Description : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When the mixture of R and S is heated with NaOH

Last Answer : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. ... (3))overset(|)(CH)-CH_(2)-COCl+CH_(3)MgCl`

When ethylene glycol is heated with concentrated HNO3, it forms (a) Oxalic acid (b) Ethylene oxide (c) Dioxane (d) Diethylene glycol

Description : When ethylene glycol is heated with concentrated HNO3, it forms (a) Oxalic acid (b) Ethylene oxide (c) Dioxane (d) Diethylene glycol

Last Answer : Oxalic acid

How we Convert benzene into glyoxal?

Description : How we Convert benzene into glyoxal?

Last Answer : Need answer

Ozonolysis of benzene gives (a) Formic acid (b) Glyoxal (c) Formaldehyde (d) Glycine

Description : Ozonolysis of benzene gives (a) Formic acid (b) Glyoxal (c) Formaldehyde (d) Glycine

Last Answer : Glyoxal

The treatment of with concentrated NaOH gives

Description : The treatment of with concentrated NaOH gives

Last Answer : The treatment of with concentrated NaOH gives A. B. C. D.

The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two different oxioacids of chlorine, P and Q, r

Description : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two different oxioacids of chlorine, P and Q, r

Last Answer : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of ... `H_3PO_2` D. `SOCl_2 , PCl_5` and `H_3PO_5`

The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two different oxioacids of chlorine, P and Q, r

Description : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two different oxioacids of chlorine, P and Q, r

Last Answer : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give ... porchloric acids D. (D) chloric and hypochlorus acids

Sulphur on reaction with concentrated `HNO_3`. Gives `(A)` which reacts with `NaOH` gives `(B).(A)` and `(B)` are

Description : Sulphur on reaction with concentrated `HNO_3`. Gives `(A)` which reacts with `NaOH` gives `(B).(A)` and `(B)` are

Last Answer : Sulphur on reaction with concentrated `HNO_3`. Gives `(A)` which reacts with `NaOH` gives `(B).(A)` and `(B)` ... `H_(2)S_(2)O_(3),Na_(2)S_(2)O_(3)`

When Bauxite is heated with NaOH solution, the water soluble compound formed is

Description : When Bauxite is heated with NaOH solution, the water soluble compound formed is

Last Answer : When Bauxite is heated with NaOH solution, the water soluble compound formed is A. `NaAlO_(2)` B. `Na_(3)AlO_(3)` C. `Al(OH)_(3)` D. `Al_(2)O_(3)`

When chloroform is heated with aqueous NaOH, it gives (a) Formic acid (b) Sodium formate (c) Acetic acid (d) Sodium acetate

Description : When chloroform is heated with aqueous NaOH, it gives (a) Formic acid (b) Sodium formate (c) Acetic acid (d) Sodium acetate

Last Answer : Sodium formate

Sodium extract is heated with concentrated `HNO_(3)` before testing for halogens because :

Description : Sodium extract is heated with concentrated `HNO_(3)` before testing for halogens because :

Last Answer : Sodium extract is heated with concentrated `HNO_(3)` before testing for halogens because : A. Ag reacts ... )` and hence do not interfere in the test.

When ethanol is heated with concentrated H2SO4, a gas is produced. Which of the following compounds is formed when this gas is treated with bromine in CCl4?E2 (a) Bromomethane (b) 1,2-Dibromoethane (c) Bromoethane (d) 1,1,2,2-Tetrabromoethane

Description : When ethanol is heated with concentrated H2SO4, a gas is produced. Which of the following compounds is formed when this gas is treated with bromine in CCl4?E2 (a) Bromomethane (b) 1,2-Dibromoethane (c) Bromoethane (d) 1,1,2,2-Tetrabromoethane

Last Answer : 1,2-Dibromoethane

Do you throw away the skin that sometimes forms on the surface of milk while it s being heated stir it back into the milk?

Description : Do you throw away the skin that sometimes forms on the surface of milk while it s being heated stir it back into the milk?

Last Answer : It is up to you. Some people actually scoop up the skin and either dispose of it, or even eat it (it is still milk, after all). If stirred back in, it may make the rest of the milk rather lumpy.

Why is that on being heated in excess supply of air K,Rb and Cs forms superoxide’s instead of Oxides & peroxides?

Description : Why is that on being heated in excess supply of air K,Rb and Cs forms superoxide’s instead of Oxides & peroxides?

Last Answer : Ans.K + ,Rb+ and Cs+ are large cations and superoxide ion is larger than oxide and peroxide ions. Since due to higher lattice energies,a large cation stabilizes a large anion,therefore these metals form Superoxides.

A certain hypohalite on treating with hot and conc. NaOH forms anions P and Q. More stable anion among P and Q can be obtained by neutralizing Its con

Description : A certain hypohalite on treating with hot and conc. NaOH forms anions P and Q. More stable anion among P and Q can be obtained by neutralizing Its con

Last Answer : A certain hypohalite on treating with hot and conc. NaOH forms anions P and Q. More stable ... produces a gas which Is used in fire extinguisher.

`XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly disproportionate in alkaline solution as `

Description : `XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly disproportionate in alkaline solution as `

Last Answer : `XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly ... `Na_(4)XeO_(6)` D. `Na_(4)XeO_(4)`

What are Concentrated forms of energy necessary for healthy skin and normal growth?

Description : What are Concentrated forms of energy necessary for healthy skin and normal growth?

Last Answer : Adenosine triphosphate. It's the only source of energy for thehuman body.

When glycerol is treated with a mixture of concentrated HNO3 + H2SO4, it forms (a) Nitroethane (b) 1-Nitropropane (c) Nitroglycerine (d) 2-Nitropropane

Description : When glycerol is treated with a mixture of concentrated HNO3 + H2SO4, it forms (a) Nitroethane (b) 1-Nitropropane (c) Nitroglycerine (d) 2-Nitropropane

Last Answer : Nitroglycerine

Give reasons for the following observations: (a) The element carbon forms a very large number of compounds. (b) Air holes of a gas burner have to be adjusted when the heated vessels get blackened by the flame. (c) Use of synthetic detergents causes pollution of water. -Chemistry

Description : Give reasons for the following observations: (a) The element carbon forms a very large number of compounds. (b) Air holes of a gas burner have to be adjusted when the heated vessels get blackened by the flame. (c) Use of synthetic detergents causes pollution of water. -Chemistry

Last Answer : Answer. (a) Carbon forms large number of compounds since carbon is small in size and can form stable covalent bonds (catenation) and it shows tetravalency. (b) Air holes of gas burner are ... not get blackened. (c) Some synthetic detergents are non-biodegradable, therefore, cause pollution of water.

Which of the following compounds when heated with CO at 423K and 500 atm. Pressure in presence of `BF_(3)` forms ethyl propionate ?

Description : Which of the following compounds when heated with CO at 423K and 500 atm. Pressure in presence of `BF_(3)` forms ethyl propionate ?

Last Answer : Which of the following compounds when heated with CO at 423K and 500 atm. Pressure in presence of `BF_(3)` forms ... H_(5)` D. `CH_(3)OC_(2)H_(5)`

How does the scale that forms copper is heated differ from the copper?

Description : How does the scale that forms copper is heated differ from the copper?

Last Answer : Heating copper in air the copper oxide CuO is formed.

When glycine is heated, it forms (a) Diketopiperazine (b) Acrylic acid (c) Butyric acid (d) Butyrlactam

Description : When glycine is heated, it forms (a) Diketopiperazine (b) Acrylic acid (c) Butyric acid (d) Butyrlactam

Last Answer : Diketopiperazine

When glycerol is heated with potassium hydrogen sulfate (KHSO4), it forms (a) Acrolein (b) Acetic acid (c) Allyl alcoho(d) Propionic acidl

Description : When glycerol is heated with potassium hydrogen sulfate (KHSO4), it forms (a) Acrolein (b) Acetic acid (c) Allyl alcohol (d) Propionic acid

Last Answer : Acrolein

A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water to give strongly acidic solution. The gas also gives dense

Description : A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water to give strongly acidic solution. The gas also gives dense

Last Answer : A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water ... `CO_2` from the solution of sodium hydrogencarbonates.

What kind of combustion is observed in alkanes? Why do air holes of a gas burner have to be adjusted when vessel being heated gets blackened by the flame? -Science

Description : What kind of combustion is observed in alkanes? Why do air holes of a gas burner have to be adjusted when vessel being heated gets blackened by the flame? -Science

Last Answer : Alkanes are saturated hydrocarbons and generally burn in air with a blue, non-sooty flame. If the bottoms of the cooking vessels in our homes are getting blackened, it shows that the air holes of the gas stove are getting blocked and the fuel is not burning completely.

Why should the thermometer never touch the bottom of the container that is being heated?

Description : Why should the thermometer never touch the bottom of the container that is being heated?

Last Answer : The inner wall of the chamber is water-cooled and the heat from the particles is removed via conduction through the wall to the water and convection of the heated water to an external ... by the surrounding vacuum chamber. The neutron flux is reduced significantly at a purpose-built neutron s

Is Melting coin being heated and turn black this is used as a test for metal a chemical or a physical change?

Description : Is Melting coin being heated and turn black this is used as a test for metal a chemical or a physical change?

Last Answer : hg

When sugar canalize on being heated above its melting point is physical change or chemical?

Description : When sugar canalize on being heated above its melting point is physical change or chemical?

Last Answer : Melting is a physical process.

Which would expand the most on being heated?

Description : Which would expand the most on being heated?

Last Answer : – Air

A lead-acid battery cell sustaining a short circuit _______. A. will be indicated by lime accumulation on the terminal posts B. will have unusually high cell voltage C. will become excessively heated while being charged D. cannot be completely discharged under load

Description : A lead-acid battery cell sustaining a short circuit _______. A. will be indicated by lime accumulation on the terminal posts B. will have unusually high cell voltage C. will become excessively heated while being charged D. cannot be completely discharged under load

Last Answer : Answer: C

Which would expand the most on being heated?

Description : Which would expand the most on being heated?

Last Answer : Air

A boiling water reactor is the one, in which the (A) Coolant water is allowed to boil in the core of the reactor (B) Coolant water, after being heated in the reactor core, generates steam in a boiler (C) Pressurised water is pumped into the core (D) Fuel and the coolant are thoroughly mixed to form a homogeneous solution

Description : A boiling water reactor is the one, in which the (A) Coolant water is allowed to boil in the core of the reactor (B) Coolant water, after being heated in the reactor core, generates steam ... water is pumped into the core (D) Fuel and the coolant are thoroughly mixed to form a homogeneous solution

Last Answer : (A) Coolant water is allowed to boil in the core of the reactor

Gas being heated at constant volume is undergoing the process of.  a. isometric  b. specific heat  c. enthalpy  d. isothermal

Description : Gas being heated at constant volume is undergoing the process of.  a. isometric  b. specific heat  c. enthalpy  d. isothermal

Last Answer : isometric

Water (specific heat cv= 4.2 kJ/ kg ∙ K ) is being heated by a 1500 W h eater. What is the rate of change in temperature of 1kg of the water?  A. 0.043 K/s  B. 0.179 K/s  C. 0.357 K/s  D. 1.50 K/s Formula: Q = mcv ( T)

Description : Water (specific heat cv= 4.2 kJ/ kg ∙ K ) is being heated by a 1500 W h eater. What is the rate of change in temperature of 1kg of the water?  A. 0.043 K/s  B. 0.179 K/s  C. 0.357 K/s  D. 1.50 K/s Formula: Q = mcv ( T)

Last Answer : 0.179 K/s

How do I make .1N solution of NaOH?

Description : How do I make .1N solution of NaOH?

Last Answer : NaOH is Sodium Hydroxide… or otherwise known as lye. I create a solution of Sodium Hydroxide all the time. Is this for cleaning purposes? For what are you making the solution for? How accurate does the solution really need to be?

What Sodium (Na) and water (H2O) undergo a chemical reaction that produces sodium hydroxide (NaOH and hydrogen gas (H2). Which equation represents this chemical reaction?

Description : What Sodium (Na) and water (H2O) undergo a chemical reaction that produces sodium hydroxide (NaOH and hydrogen gas (H2). Which equation represents this chemical reaction?

Last Answer : 2Na+2H20->2Na0H+H2 ::::apex

NaOH + HCl = What is the reaction of NaCl + H2O ?

Description : NaOH + HCl = What is the reaction of NaCl + H2O ?

Last Answer : mitigation reaction.

Compound A(`C_7H_8O`)is insoluble in water, dilute HCl & aqueous `NaHCO_3`, it dissolves in dilute NaOH.When A is treatedwith `Br_2` water it is conve

Description : Compound A(`C_7H_8O`)is insoluble in water, dilute HCl & aqueous `NaHCO_3`, it dissolves in dilute NaOH.When A is treatedwith `Br_2` water it is conve

Last Answer : Compound A(`C_7H_8O`)is insoluble in water, dilute HCl & aqueous `NaHCO_3`, it dissolves in dilute NaOH.When A ... . The structure ofA is A. B. C. D.

The volume (in ml) of 0.5 M NaOH required for the complete reaction with 150 ml of 1.5M `H_(3)PO_(3)` solution is

Description : The volume (in ml) of 0.5 M NaOH required for the complete reaction with 150 ml of 1.5M `H_(3)PO_(3)` solution is

Last Answer : The volume (in ml) of 0.5 M NaOH required for the complete reaction with 150 ml of 1.5M `H_(3)PO_(3)` solution is A. 1350 B. 900 C. 1250 D. 1150

Consider the following set of reactions : `CHCl_(2)COOH+NaOHrarrCHCl_(2)COONa+H_(2)O " " Delta H_(1) = - 12830` Cal. `HCl + NaOH rarr NaCl + H_(2)O "

Description : Consider the following set of reactions : `CHCl_(2)COOH+NaOHrarrCHCl_(2)COONa+H_(2)O " " Delta H_(1) = - 12830` Cal. `HCl + NaOH rarr NaCl + H_(2)O "

Last Answer : Consider the following set of reactions : `CHCl_(2)COOH+NaOHrarrCHCl_(2)COONa+H_(2)O " " Delta H_(1) = - 12830 ... H^(+) + OH^(-)` is `-13680`Cal.

Which of the following reacts with NaOH to liberate a gas ?

Description : Which of the following reacts with NaOH to liberate a gas ?

Last Answer : Which of the following reacts with NaOH to liberate a gas ? A. `P_(4)` (white phosphorus) B. `S_(8)` (rhombic sulphur) C. `Cl_(2)` D. C (graphite)

The change in the enthalpy of `NaOH+HCl rarr NaCl+H_(2)O` is called :

Description : The change in the enthalpy of `NaOH+HCl rarr NaCl+H_(2)O` is called :

Last Answer : The change in the enthalpy of `NaOH+HCl rarr NaCl+H_(2)O` is called : A. Heat of ... of reaction C. Heat of hydration D. Heat of solution

Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the major product. X on treatment with `(

Description : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the major product. X on treatment with `(

Last Answer : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the ... `H_(2)SO_(4)` produces B. C. D.

Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` to form product B. A and B are respectivel

Description : Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` to form product B. A and B are respectivel

Last Answer : Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` ... A and B are respectively A. B. C. D.

In the hofmann-bromamide degradation reaction, the number of moles of NaOH and `Br_(2)` used per mole of amine produced are

Description : In the hofmann-bromamide degradation reaction, the number of moles of NaOH and `Br_(2)` used per mole of amine produced are

Last Answer : In the hofmann-bromamide degradation reaction, the number of moles of NaOH and `Br_(2)` used per mole of ... moles of NaOH and one mole of `Br_(2)`

The product formed by the reaction of acetamide with bromine in presence of `NaOH` is

Description : The product formed by the reaction of acetamide with bromine in presence of `NaOH` is

Last Answer : The product formed by the reaction of acetamide with bromine in presence of `NaOH` is A. `CH_(3)CN` B. `CH_(3) ... `CH_(3)CH_(2)OH` D. `CH_(3)NH_(2)`