Amongst the compounds gives, the one that would form a brilliant colored dye on treatment with `NaNO_2` in dil. `HCl` followed by addition to an alkal

Amongst the compounds gives, the one that would form a brilliant colored dye on treatment with `NaNO_2` in dil. `HCl` followed by addition to an alkal
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Amongst the compounds gives, the one that would form a brilliant colored dye on treatment with `NaNO_2` in dil. ... of `beta-`naphthol is A. B. C. D.
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The products formed in the reaction of cumene with `O_(2)` followed by treatment with dil. HCl are :

Description : The products formed in the reaction of cumene with `O_(2)` followed by treatment with dil. HCl are :

Last Answer : The products formed in the reaction of cumene with `O_(2)` followed by treatment with dil. HCl are : A. B. C. D.

How many toluidines on reaction with `NaNO_(2)//HCl` followed by `H_(3)PO_(2)` treatment gives Toluene.

Description : How many toluidines on reaction with `NaNO_(2)//HCl` followed by `H_(3)PO_(2)` treatment gives Toluene.

Last Answer : How many toluidines on reaction with `NaNO_(2)//HCl` followed by `H_(3)PO_(2)` treatment gives Toluene.

Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Description : Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Last Answer : This is the Answer.

How many anions evolve brownish gas when treated with dil. /con. HCl ? `(i) CO_(3)^(2-) " " (ii)SO_(3)^(2-) " " (iii) NO_(2)^(-) " " (iv)Cl^(-)` `(v)

Description : How many anions evolve brownish gas when treated with dil. /con. HCl ? `(i) CO_(3)^(2-) " " (ii)SO_(3)^(2-) " " (iii) NO_(2)^(-) " " (iv)Cl^(-)` `(v)

Last Answer : How many anions evolve brownish gas when treated with dil. /con. HCl ? `(i) CO_(3)^(2-) " " (ii)SO_(3)^(2-) ... NO_(3)^(-) " " (vii) CH_(3)CO O^(-)`

Find the total number of acidic radical which produce volatile product with dil HCl : `(i) SO_(4)^(2-) " " (ii) I^(-) " " (iii) NO_(2)^(-) " " (iv) NO

Description : Find the total number of acidic radical which produce volatile product with dil HCl : `(i) SO_(4)^(2-) " " (ii) I^(-) " " (iii) NO_(2)^(-) " " (iv) NO

Last Answer : Find the total number of acidic radical which produce volatile product with dil HCl : `(i) SO_(4)^(2-) " " (ii) ... SO_(3)^(2-) " " (vi) HCO_(3)^(-)`

Number of ions which are identified by dil. HCl from the following. `(i) SO_(4)^(2-) " " (ii) CO_(3)^(2-) " " (iii) SO_(3)^(2-) " " (iv) HCO_(3)^(-)`

Description : Number of ions which are identified by dil. HCl from the following. `(i) SO_(4)^(2-) " " (ii) CO_(3)^(2-) " " (iii) SO_(3)^(2-) " " (iv) HCO_(3)^(-)`

Last Answer : Number of ions which are identified by dil. HCl from the following. `(i) SO_(4)^(2-) " " (ii) CO_(3)^(2-) " ... CH_(3)CO O^(-) " " (viii) PO_(4)^(3-)`

Which of the following anions are identified by dil. HCl :

Description : Which of the following anions are identified by dil. HCl :

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Alkaloids are usually purified by extraction with (A) Ether (B) Dil HCl (C) NaOH (D) Chloroform

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Last Answer : Answer : B

Aquaregia is a mixture of the following in the ratio 1 : 3 by volume– (1) cone. HNO3 and cone. HCL (2) conc. HNO3 and conc. H2SO4 (3) dil. HCl and dil. HNO3 (4) cone. HCl and cone. HNO3

Description : Aquaregia is a mixture of the following in the ratio 1 : 3 by volume– (1) cone. HNO3 and cone. HCL (2) conc. HNO3 and conc. H2SO4 (3) dil. HCl and dil. HNO3 (4) cone. HCl and cone. HNO3

Last Answer : (3) dil. HCl and dil. HNO3 Explanation: Aqua regia or nitro-hydrochloric acid is a highly corrosive mixture of acids which is formed by freshly mixing concentrated Nitric acid (HNO3) and Hydrochloric acid (HCl), optimally in a volume ratio of 1:3. It is used in dissolving gold.

The reagent used to distinguish iron(II) chloride and iron (ii) chloride (a)distilled water (b) NaOH (c) dil HCl (d) warm water

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Last Answer : (b) NaOH

Aquaregia is a mixture of the following in the ratio 1 : 3 by volume (1) conc. HNO3 and conc. HCl (2) conc. HNO3 and conc. H2 SO4 (3) dil. HCl and dil. HNO3 (4) conc. HCl and conc. HNO3

Description : Aquaregia is a mixture of the following in the ratio 1 : 3 by volume (1) conc. HNO3 and conc. HCl (2) conc. HNO3 and conc. H2 SO4 (3) dil. HCl and dil. HNO3 (4) conc. HCl and conc. HNO3

Last Answer : dil. HCl and dil. HNO3

Addition of HCl to 3-methyl-1-pentene gives two products. One of these is 2-chloro-3-methylpentane. What is the other product? (a) 1-Chloro-3-methylpentane (b) 3-Chloro-3-methylpentane (c) 3-Chloro-2-methylpentane (d) 2-Chloro-2-methylpentane

Description : Addition of HCl to 3-methyl-1-pentene gives two products. One of these is 2-chloro-3-methylpentane. What is the other product? (a) 1-Chloro-3-methylpentane (b) 3-Chloro-3-methylpentane (c) 3-Chloro-2-methylpentane (d) 2-Chloro-2-methylpentane

Last Answer : 3-Chloro-3-methylpentane

Addition of two moles of HCl to propyne gives : (a) 2,2-Dichloropropane (b) 1,3-Dichloropropane (c) 1,2-Dichloropropane (d) None of these

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Last Answer : 2,2-Dichloropropane

The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_(2)O` give Q the compound Q on treatment with `

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Last Answer : The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2) ... and Friedel-Crafts acylation D. Dehydration and Friedel-Crafts acylation

The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_(2)O` give Q the compound Q on treatment with `

Description : The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_(2)O` give Q the compound Q on treatment with `

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How to get dye stains out of the white parts of a colored shirt?

Description : How to get dye stains out of the white parts of a colored shirt?

Last Answer : https://www.omo.com/za/laundry/laundry-tips/stains/get-dye-clothes.html hope that this can help?

The reason why materials appear colored is (a) The selective absorption of spectral colors (b) The interaction between the light and the electrons of the dye molecules (c) The composition of the white light from various spectral colors (d) All of these

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Last Answer : All of these

Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_(6)]^(3-)` to `[Fe(CN)_(6)]^(4-)` in alkal

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Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_(6)]^(3-)` to `[Fe(CN)_(6)]^(4-)` in alkal

Description : Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_(6)]^(3-)` to `[Fe(CN)_(6)]^(4-)` in alkal

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(B) on treatment with `Zn//HCl` gives :

Description : (B) on treatment with `Zn//HCl` gives :

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A salt solution of `Cd^(2+)` in dilute HCl, on treatment with a solution of `BaCl_(2)` gives a white precipitate, which is insoluble in concentrated `

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Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound E on furhter treatment with aqueous KOH yields comp

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Which of the following anions are producing same gas on treatment with `(Zn+ " dil." H_(2)SO_(4))`. `I :SO_(3)^(2-) " " II : HSO_(3)^(-) " " III : S^(

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.Addition of new cell wall particles amongst the existing ones is (a) deposition (b) apposition (c) intussusception (d) aggregation

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Last Answer : (c) intussusception

Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass. (A) Chromium (B) Arsenic (C) Copper (D) Manganese

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Last Answer : (C) Copper

The intermediate during the addition of `HCl` to propene in the presence of peroxide is :

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A compound undergoes reduction with LiAlH4. It also dissolves in aqueous NaOH from which it can be recovered by addition of HCl. The compound is (a) a carboxylic acid (b) an ester (c) an acid anhydride (d) an alcohol

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Last Answer : a carboxylic acid

Which of the following compounds can form alcohol with `NaNO_(2)//HCl`?

Description : Which of the following compounds can form alcohol with `NaNO_(2)//HCl`?

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Which of the following compounds does not form a salt with dilute HCl? (a) CH3CH2CONH2 (b) (CH3CH2)2NH (c) CH3CH2NH2 (d) (CH3CH2)3N

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Last Answer : CH3CH2CONH2

How many of the following compounds are possible products when chlorine is passed through hypo solution (i) S (ii) HCl (iii) `Na_(2)S` (iv) `Na_(2)SO_

Description : How many of the following compounds are possible products when chlorine is passed through hypo solution (i) S (ii) HCl (iii) `Na_(2)S` (iv) `Na_(2)SO_

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How many of the following compounds are possible products when chlorine is passed through hypo solution (i) S (ii) HCl (iii) `Na_(2)S` (iv) `Na_(2)SO_

Description : How many of the following compounds are possible products when chlorine is passed through hypo solution (i) S (ii) HCl (iii) `Na_(2)S` (iv) `Na_(2)SO_

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Benzoic acid and diphenyl ketone are both solids insoluble in water. A mixture of these compounds can be separated if we (a) add the mixture to a solution of NaOH in water, and filter. (b) add the mixture to a solution of HCl in water, and filter. (c) dissolve the mixture in benzene and boil off the benzene. (d) It is impossible to separate a mixture of two solids when both are insoluble in water.

Description : Benzoic acid and diphenyl ketone are both solids insoluble in water. A mixture of these compounds can be separated if we (a) add the mixture to a solution of NaOH in water, and filter. (b) add ... benzene. (d) It is impossible to separate a mixture of two solids when both are insoluble in water.

Last Answer : add the mixture to a solution of NaOH in water, and filter

Which of the following compounds is least acidic? (a) HCl (b) Phenol (c) Acetylene (d) Picric acid

Description : Which of the following compounds is least acidic? (a) HCl (b) Phenol (c) Acetylene (d) Picric acid

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Which of the following pairs of compounds could NOT be used to create a buffer solution? Would it be: w) HCL and NaCl (read: H - C - L and N - A - C - L) x) HCN and NaCN (read: H - C - N and N - A - C - N) y) NH3 and NH4Cl (read: N - H - 3 and N - H - 4 - C - L) z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)

Description : Which of the following pairs of compounds could NOT be used to create a buffer solution? Would it be: w) HCL and NaCl (read: H - C - L and N - A - C - L) x) HCN and NaCN (read: H - C - N and N - A - C - N) y) NH3 ... - H - 4 - C - L) z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)

Last Answer : ANSWER: W -- HCL AND NaCl (read: H - C - L and N - A - C - L) 

One of the steps during refining of cane sugar consists of addition ofhydrated lime to the sugar syrup followed by carbonation of the resultingsolution. The purpose of this step is to(A) Adjust the pH of the syrup(B) Remove the coloring matter from the syrup(C) Reduce the viscosity of the syrup(D) Improve the rate of crystallisation of sugar

Description : One of the steps during refining of cane sugar consists of addition ofhydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to (A) Adjust ... (C) Reduce the viscosity of the syrup (D) Improve the rate of crystallisation of sugar

Last Answer : (A) Adjust the pH of the syrup

Who amongst the following was awarded Nobel Prize for path breaking contributions to develop treatment agaThst Parkinson's disease? (1) Arvid Carlsson (2) Walter Kohn (3) Robert B. Laughlin (4) Fend Murad

Description : Who amongst the following was awarded Nobel Prize for path breaking contributions to develop treatment agaThst Parkinson's disease? (1) Arvid Carlsson (2) Walter Kohn (3) Robert B. Laughlin (4) Fend Murad

Last Answer : (1) Arvid Carlsson Explanation: In the 1950s, Arvid Carlsson demonstrated that dopamine was a neurotransmitter in the brain and not just a precursor fornorepinephrine, as had been previously believed ... animals the drug reserpine caused a decrease in dopamine levels and a loss of movement control.

Who amongst the following was awarded Nobel Prize for path breaking contributions to develop treatment against Parkinson's disease ? (1) Arvid Carlsson (2) Walter Kohn (3) Robert B. Laughlin (4) Ferid Murad

Description : Who amongst the following was awarded Nobel Prize for path breaking contributions to develop treatment against Parkinson's disease ? (1) Arvid Carlsson (2) Walter Kohn (3) Robert B. Laughlin (4) Ferid Murad

Last Answer : Arvid Carlsson

Complete reduction of benzene-diazonium chloride with Zn/HCl gives :

Description : Complete reduction of benzene-diazonium chloride with Zn/HCl gives :

Last Answer : Complete reduction of benzene-diazonium chloride with Zn/HCl gives : A. Aniline B. Phenylhydrazine C. Azobenzene D. Hydrazobenzene

Which of the following is true when HCL is passed through water. (i) It does not ionize in the solution as it is a covalent compound (ii) It ionizes in the solution (iii) It gives both hydrogen and hydroxyl ions in the solution (iv) It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule. (a) (i) only (b) (iii) only (c) (ii) and (iv) only (d) (iii) and (iv)

Description : Which of the following is true when HCL is passed through water. (i) It does not ionize in the solution as it is a covalent compound (ii) It ionizes in the solution (iii) It gives both hydrogen and hydroxyl ions in the solution ... ) (i) only (b) (iii) only (c) (ii) and (iv) only (d) (iii) and (iv)

Last Answer : (c) (ii) and (iv) only

Reduction of p-nitrotoluene with Sn + HCl gives : (a) p-methylaniline (b) Toluene (c) m-methylaniline (d) N-Methylaniline

Description : Reduction of p-nitrotoluene with Sn + HCl gives : (a) p-methylaniline (b) Toluene (c) m-methylaniline (d) N-Methylaniline

Last Answer : p-methylaniline

The nurse advises the patient undergoing photodynamic therapy (PDT) for macular degeneration to avoid exposure to direct sunlight or bright lights for a) the first five days after the procedure. Photodynamic therapy includes the use of verteporfin, a light-activated dye. The dye within the blood vessels near the surface of the skin could become activated with exposure to strong light, such as sunlight or bright lights. Ordinary indoor light is not a problem. The patient should be counseled to wear protective clothing, such as long-sleeved shirts, sunglasses, and wide-brimmed hats, if the patient has to go outdoors during daylight hours in the first five days post-treatment. Inadvertent sunlight exposure can lead to severe blistering of the skin and sunburn.

Description : The nurse advises the patient undergoing photodynamic therapy (PDT) for macular degeneration to avoid exposure to direct sunlight or bright lights for a) the first five days after the procedure. ... should avoid exposure to direct sunlight or bright lights for the first five days post-treatment.

Last Answer : a) the first five days after the procedure. Photodynamic therapy includes the use of verteporfin, a light-activated dye. The dye within the blood vessels near the surface of the skin could ... days post-treatment. Inadvertent sunlight exposure can lead to severe blistering of the skin and sunburn.

Which of the following compounds will react with methylmagnesium iodide followed by acid-hydrolysis to give ethyl alcohol? (a) Ethylene (b) Acetaldehyde (c) Formaldehyde (d) Acetone

Description : Which of the following compounds will react with methylmagnesium iodide followed by acid-hydrolysis to give ethyl alcohol? (a) Ethylene (b) Acetaldehyde (c) Formaldehyde (d) Acetone

Last Answer : Formaldehyde

What is treatment for a rust-colored scale and dead leaves on several large twigs?

Description : What is treatment for a rust-colored scale and dead leaves on several large twigs?

Last Answer : Need Answer

The metal that does not give H2 on treatment with dilute HCl is (a) Zn (b) Fe (c) Ag (d) Ca

Description : The metal that does not give H2 on treatment with dilute HCl is (a) Zn (b) Fe (c) Ag (d) Ca

Last Answer : Ans:(c)

he metal does not give H2 on treatment with dilute HCL is?

Description : he metal does not give H2 on treatment with dilute HCL is?

Last Answer : :Ag

Compound (A) when reacted with PCl5 and then with ammonia gave (B). Compound (B) when treated with bromine and NaOH, produced (C). Compound (C) on treatment with NaNO2/HCl at 0°C and then boiling with H2O produced ocresol. Compound (A) is (a) o-Toluic acid (b) o-Chlorotoluene (c) m-Toluic acid (d) o-Bromotoluene

Description : Compound (A) when reacted with PCl5 and then with ammonia gave (B). Compound (B) when treated with bromine and NaOH, produced (C). Compound (C) on treatment with NaNO2/HCl at 0°C and then boiling with H2O ... Compound (A) is (a) o-Toluic acid (b) o-Chlorotoluene (c) m-Toluic acid (d) o-Bromotoluene

Last Answer : o-Toluic acid

Which of the following statements is false about aniline? (a) It is a primary aromatic amine. (b) It is a weak base which forms salts with acids. (c) It liberates nitrogen on treatment with ice-cold nitrous acid. (d) It can be prepared by the reduction of nitrobenzene with tin and HCl

Description : Which of the following statements is false about aniline? (a) It is a primary aromatic amine. (b) It is a weak base which forms salts with acids. (c) It liberates nitrogen on treatment with ice-cold nitrous acid. (d) It can be prepared by the reduction of nitrobenzene with tin and HCl

Last Answer : It liberates nitrogen on treatment with ice-cold nitrous acid

Isopropyl alcohol can be converted to acetone by treatment with (a) HCl/ZnCl2 (b) Na2Cr2O7/H2SO4 (c) NaOH (d) LiAlH4

Description : Isopropyl alcohol can be converted to acetone by treatment with (a) HCl/ZnCl2 (b) Na2Cr2O7/H2SO4 (c) NaOH (d) LiAlH4

Last Answer : Na2Cr2O7/H2SO4

The main use of HCl is in the (A) Drilling of petroleum wells and pickling of steel sheets (B) Manufacture of cationic detergent (C) Treatment of spent fuel of nuclear reactor (D) None of these

Description : The main use of HCl is in the (A) Drilling of petroleum wells and pickling of steel sheets (B) Manufacture of cationic detergent (C) Treatment of spent fuel of nuclear reactor (D) None of these

Last Answer : (A) Drilling of petroleum wells and pickling of steel sheets

4-Hydroxy-4-methylpentanal on heating with excess of methanol in the presence of an acid catalyst followed by dehydration of the products gives

Description : 4-Hydroxy-4-methylpentanal on heating with excess of methanol in the presence of an acid catalyst followed by dehydration of the products gives

Last Answer : 4-Hydroxy-4-methylpentanal on heating with excess of methanol in the presence of an acid catalyst followed by ... of the products gives A. B. C. D.