n-propylamine containing no secondary and tertiary amines as impurities is prepared by

n-propylamine containing no secondary and tertiary amines as impurities is prepared by
by

1 Answer

Answer :

n-propylamine containing no secondary and tertiary amines as impurities is prepared by A. Hoffmann ... n-propylchloride with ammonia D. none of these
by

Related questions

Carbylamine test is given by (a) Primary amines (b) Secondary amines (c) Tertiary amines (d) None of these

Description : Carbylamine test is given by (a) Primary amines (b) Secondary amines (c) Tertiary amines (d) None of these

Last Answer : Primary amines

Which of the following statements is false about secondary amines? (a) They react with chloroform and NaOH to form isocyanides. (b) They can be prepared by reduction of isocyanides. (c) They react with acid chlorides to give substituted amides. (d) They react with ice-cold nitrous acid to give nitrosamine (yellow oil)

Description : Which of the following statements is false about secondary amines? (a) They react with chloroform and NaOH to form isocyanides. (b) They can be prepared by reduction of isocyanides. (c) They react ... give substituted amides. (d) They react with ice-cold nitrous acid to give nitrosamine (yellow oil)

Last Answer : They react with chloroform and NaOH to form isocyanides.

The nitrogan atom in each of the following tertiary amines may be removed as trimethyl amine by repeated Hoffmann elimination. Which of the following

Description : The nitrogan atom in each of the following tertiary amines may be removed as trimethyl amine by repeated Hoffmann elimination. Which of the following

Last Answer : The nitrogan atom in each of the following tertiary amines may be removed as trimethyl amine by repeated Hoffmann ... to accomplish this? A. B. C. D.

Can tertiary amines undergo acetylation reactions ? Explain.

Description : Can tertiary amines undergo acetylation reactions ? Explain. 

Last Answer : For an amine to undergo acetylation, it should have a replaceable hydrogen atom. Tertiary amines cannot undergo acetylation reactions because these do not have replaceable hydrogen atom.

Which of the following will have the highest boiling point? (a) Diethyl ether (b) n-Butane (c) Acetamide (d) n-Propylamine

Description : Which of the following will have the highest boiling point? (a) Diethyl ether (b) n-Butane (c) Acetamide (d) n-Propylamine

Last Answer : Acetamide

Ketones are prepared by the oxidation of (a) Primary alcohol (b) Secondary alcohol (c) Tertiary alcohol (d) None of these

Description : Ketones are prepared by the oxidation of (a) Primary alcohol (b) Secondary alcohol (c) Tertiary alcohol (d) None of these

Last Answer : Secondary alcohol

Which of the following amines cannot be prepared by path-I?

Description : Which of the following amines cannot be prepared by path-I?

Last Answer : Which of the following amines cannot be prepared by path-I? A. B. C. D.

Aromatic primary amines are not prepared by gabrial phthalimide synthesis. Why?

Description : Aromatic primary amines are not prepared by gabrial phthalimide synthesis. Why?

Last Answer : Ans:- Because aryl halides donot undergo nucleophilic substitution reaction. 

Which of the following statements is false about primary amines? (a) They can be prepared by reduction of nitriles with LiAlH4. (b) They do not form salts with acids(c) They react with ice-cold nitrous acid to form nitrogen gas.(d) They are basic and soluble in water

Description : Which of the following statements is false about primary amines? (a) They can be prepared by reduction of nitriles with LiAlH4. (b) They do not form salts with acids (c) They react with ice-cold nitrous acid to form nitrogen gas. (d) They are basic and soluble in water

Last Answer : They do not form salts with acids

Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Description : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Last Answer : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to ... molten slag `Fe_(2)(SiO_(3))_(3)`

Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Description : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Last Answer : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove ... is A. 10 B. 20 C. 30 D. 40

Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Description : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Last Answer : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove ... C` C. `FeC_(3)` D. `Fe_(2)C`

A nitrile can be made by dehydrating an amide. However, for this reaction to occur, the amide must be : (a) primary (b) secondary (c) tertiary (d) N-methylated

Description : A nitrile can be made by dehydrating an amide. However, for this reaction to occur, the amide must be : (a) primary (b) secondary (c) tertiary (d) N-methylated

Last Answer : primary

The diazonium salts are the reaction products of the reaction of nitrous acid with (a) primary aliphatic amines (b) primary aromatic amines (c) secondary aliphatic amines (d) secondary aromatic amines

Description : The diazonium salts are the reaction products of the reaction of nitrous acid with (a) primary aliphatic amines (b) primary aromatic amines (c) secondary aliphatic amines (d) secondary aromatic amines

Last Answer : primary aromatic amines

Propionamide on heating with a mixture of bromine and sodium hydroxide gives (a) Propane (b) Propylamine (c) Propanol (d) Ethylamine

Description : Propionamide on heating with a mixture of bromine and sodium hydroxide gives (a) Propane (b) Propylamine (c) Propanol (d) Ethylamine

Last Answer : Ethylamine

Assertion: Wrough iron is prepared from cast iron by oxidising impurities in a reverberatory furnace lined with haematite. Reason: Haematite oxidises

Description : Assertion: Wrough iron is prepared from cast iron by oxidising impurities in a reverberatory furnace lined with haematite. Reason: Haematite oxidises

Last Answer : Assertion: Wrough iron is prepared from cast iron by oxidising impurities in a reverberatory furnace lined ... -1 is false but Statement -2 is true

Coal containing large quantity of __________ are difficult to wash. (A) Ash (B) Inherent mineral matter (C) Free impurities (D) Volatile matter

Description : Coal containing large quantity of __________ are difficult to wash. (A) Ash (B) Inherent mineral matter (C) Free impurities (D) Volatile matter

Last Answer : (B) Inherent mineral matter

Pick up the correct statement from the following: (A) Quick lime is obtained by burning pure lime stone (B) Hydraulic lime is obtained by burning lime stone containing clay 5% to 30% (C) Poor lime is obtained by burning lime stone containing impurities more than 5% (D) All the above

Description : Pick up the correct statement from the following: (A) Quick lime is obtained by burning pure lime stone (B) Hydraulic lime is obtained by burning lime stone containing clay 5% to 30% (C) Poor lime is obtained by burning lime stone containing impurities more than 5% (D) All the above

Last Answer : Answer: Option D

How many amines are possible with the molecular formula `C_(4)H_(11)N` (structural isomers only) :-

Description : How many amines are possible with the molecular formula `C_(4)H_(11)N` (structural isomers only) :-

Last Answer : How many amines are possible with the molecular formula `C_(4)H_(11)N` (structural isomers only) :- A. 6 B. 7 C. 8 D. 9

Of the following reactions, how many reaction, are used for the preparation of amines? (a) `R-C-=N overset(LiAIh_(4))rarr` (b) `R-overset(O)overset(||

Description : Of the following reactions, how many reaction, are used for the preparation of amines? (a) `R-C-=N overset(LiAIh_(4))rarr` (b) `R-overset(O)overset(||

Last Answer : Of the following reactions, how many reaction, are used for the preparation of amines? (a) `R-C-=N overset( ... R-CH_(2)-NO_(2) overset(H_(2),Ni)rarr`

Which of the following amines form `N-` nitroso derivative when treated with `NaNO_(2)` and `HCI`?

Description : Which of the following amines form `N-` nitroso derivative when treated with `NaNO_(2)` and `HCI`?

Last Answer : Which of the following amines form `N-` nitroso derivative when treated with `NaNO_(2)` and `HCI`? A. `CH_(3)NH_(2)` B. C. D.

6. Do you think the classification of economic activities into primary, secondary and tertiary is useful? Explain how. -Economics 10th

Description : 6. Do you think the classification of economic activities into primary, secondary and tertiary is useful? Explain how. -Economics 10th

Last Answer : The classification of economic activities into primary, secondary and tertiary is useful, as it helps to classify the different occupations that are taken up by the people in the country and how much ... the GDP and which sector has the scope to employ more people and increase the National Income.

Distinguish between primary, secondary and tertiary sector. -SST 10th

Description : Distinguish between primary, secondary and tertiary sector. -SST 10th

Last Answer : Primary Sector (i) It is known as agriculture and allied services sector. (ii) This sector produce goods and services by exploiting natural resources. (iii) This sector is unorganised and use ... communication come in this sector. (v) This sector s sharing in the employment is increasing.

What is GDP ? Assess the contribution of Secondary and Tertiary Sectors to the GDP of India. -SST 10th

Description : What is GDP ? Assess the contribution of Secondary and Tertiary Sectors to the GDP of India. -SST 10th

Last Answer : (i) Gross Domestic Product (GDP) refers to the money value of final goods and services produced in each sector. (ii) (a) The contribution of secondary sector to the Gross Domestic Product (GDP) in ... (b) The contribution of tertiary sector to the Gross Domestic Product (GDP) in India is about 53%.

What is meant by a primary consumer, secondary consumer and a tertiary consumer ? -SST 10th

Description : What is meant by a primary consumer, secondary consumer and a tertiary consumer ? -SST 10th

Last Answer : Primary consumer-Primary consumers are living organisms that only eat plants i.e. producers. Herbivores/plant eaters are primary consumers. For example-Goat, Rabbit. Secondary consumer-Secondary ... consumers are large carnivores which feed on small carnivores. For example Owl, lion, etc.

Do you think the classification of economic activities into primary, secondary and tertiary is useful ? -SST 10th

Description : Do you think the classification of economic activities into primary, secondary and tertiary is useful ? -SST 10th

Last Answer : 'Yes in my opinion the classification of economic activities into primary, secondary and tertiary sectors is very useful because classification will help us in identifying which activity ... smoothly and for best administration and development, classification of economic activities is necessary.

Explain the primary, secondary and tertiary sectors by giving examples of each. -SST 10th

Description : Explain the primary, secondary and tertiary sectors by giving examples of each. -SST 10th

Last Answer : Primary Sector :- All those economic activities that are undertaken by directly using natural resources are included in primary sector. For example, mining, forestry, fishing, poultry etc. Secondary sector : ... to the market. That will be done by tertiary sector. It is also called service sector.

“When a country develops, the contribution of primary sector declines and that of secondary and tertiary sector increases.” -SST 10th

Description : “When a country develops, the contribution of primary sector declines and that of secondary and tertiary sector increases.” -SST 10th

Last Answer : (i) In the initial stages of development, the primary sector was the most important sector of economic activity. As the methods of farming changed and agriculture sector began to prosper, ... in terms of total production and employment. This is the general pattern observed in developed countries.

How can we create more employment in secondary and tertiary sectors in rural India ? -SST 10th

Description : How can we create more employment in secondary and tertiary sectors in rural India ? -SST 10th

Last Answer : (i) We can create more jobs in the secondary sector by promoting industries such as dal mills. (ii) By promoting cottage and handicraft industries to employ the villagers. By establishing ... must be promoted to generate employment. (v) Building Multi-purpose Projects can create employment.

Classify the following alcohols as primary, secondary, or tertiary :

Description : Classify the following alcohols as primary, secondary, or tertiary :

Last Answer : Classify the following alcohols as primary, secondary, or tertiary : A. `(CH_(3))_(3)C CH_(2)OH` B. `CH_(3)CH( ... `(CH_(3))_(2)C(OH)CH_(2)CH_(3)` D.

Give 3 methods to distinguish primary amine from secondary and tertiary.

Description : Give 3 methods to distinguish primary amine from secondary and tertiary.

Last Answer : Give 3 methods to distinguish primary amine from secondary and tertiary.

Which one of the following economic sectors is Laxmi related to? (a) Primary (b) Secondary (c) Tertiary (d) Quaternary

Description : Which one of the following economic sectors is Laxmi related to? (a) Primary (b) Secondary (c) Tertiary (d) Quaternary

Last Answer : Take the case of Laxmi with her two-hectare plot of unirrigated land. The government can spend some ... (b) Secondary (c) Tertiary (d) Quaternary

(i) ……………….. socialization involves intense cultural learning and takes place in childhood.  (Secondary / Primary / Tertiary)

Description : (i) ……………….. socialization involves intense cultural learning and takes place in childhood.  (Secondary / Primary / Tertiary)

Last Answer : Choose the correct alternative and complete the statement : (i) .. socialization involves ... or school. (dependent / formal / egalitarian)

Is a mallard a producer primary consumer secondary consumer or tertiary consumer?

Description : Is a mallard a producer primary consumer secondary consumer or tertiary consumer?

Last Answer : Need answer

Is frog a secondary consumer or a tertiary consumer?

Description : Is frog a secondary consumer or a tertiary consumer?

Last Answer : A frog is a secondary consumer because it eats flies that arealive and not dead.

In protein structure the α-helix and βpleated sheets are example of (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Description : In protein structure the α-helix and βpleated sheets are example of (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Last Answer : Answer : B

Denaturation of proteins involves breakdown of (A) Secondary structure(B) Tertiary structure (C) Quarternary structure(D) All of these

Description : Denaturation of proteins involves breakdown of (A) Secondary structure(B) Tertiary structure (C) Quarternary structure(D) All of these

Last Answer : Answer : D

Protein present in hemoglobin has the structure known as (A) Primary (B) Secondary (C) Tertiary (D) Quarternary

Description : Protein present in hemoglobin has the structure known as (A) Primary (B) Secondary (C) Tertiary (D) Quarternary

Last Answer : Answer : D

When egg albumin is heated till it is coagulated, the secondary and tertiary structures of the proteins are completely lost resulting in a mixture of randomly arranged (A) Dipeptide chains (B) Tripeptide chains (C) Polypeptide chains(D) All of these

Description : When egg albumin is heated till it is coagulated, the secondary and tertiary structures of the proteins are completely lost resulting in a mixture of randomly arranged (A) Dipeptide chains (B) Tripeptide chains (C) Polypeptide chains(D) All of these

Last Answer : Answer : C

The hydrogen bonds in the secondary and tertiary structure of proteins are directly attacked by (A) Salts (B) Alkalies (C) Detergents (D) All of these

Description : The hydrogen bonds in the secondary and tertiary structure of proteins are directly attacked by (A) Salts (B) Alkalies (C) Detergents (D) All of these

Last Answer : Answer : B

During denaturation of proteins, all of the following are disrupted except (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Description : During denaturation of proteins, all of the following are disrupted except (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Last Answer : Answer : B

In proteins the α-helix and β-pleated sheet are examples of (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Description : In proteins the α-helix and β-pleated sheet are examples of (A) Primary structure (B) Secondary structure (C) Tertiary structure (D) Quaternary structure

Last Answer : Answer : B

Production of a commodity mostly through the natural process is an activity of - (1) Primary Sector (2) Secondary Sector (3) Tertiary Sector (4) Technology Sector

Description : Production of a commodity mostly through the natural process is an activity of - (1) Primary Sector (2) Secondary Sector (3) Tertiary Sector (4) Technology Sector

Last Answer : (1) Primary Sector Explanation: The primary sector of the economy is the sector of an economy making direct use of natural resources. This includes agriculture, forestry, fishing, mining, and extraction of oil and gas.

The self-employed in a developing country who are engaged in small scale labour intensive work belong to the - (1) Informal sector (2) Primary sector (3) Secondary sector (4) Tertiary sector

Description : The self-employed in a developing country who are engaged in small scale labour intensive work belong to the - (1) Informal sector (2) Primary sector (3) Secondary sector (4) Tertiary sector

Last Answer : (2) Primary sector Explanation: Such a scenario is seen in the case of primary economic activities such as agriculture in the developing countries like India. Most of the primary activities are labour ... volume of man-power substitutes the lack of technology. Besides, farmers are 'self-employed.'

What region around a broadcasting transmitter in which satisfactory reception of broadcasting signal is not obtained? A. Fringe area B. Primary are C. Secondary area D. Tertiary area

Description : What region around a broadcasting transmitter in which satisfactory reception of broadcasting signal is not obtained? A. Fringe area B. Primary are C. Secondary area D. Tertiary area

Last Answer : A. Fringe area

What do you call the service area of a standard AM broadcast where fading is allowed but not objectionable co-channel interference? A. Experimental B. Secondary C. Tertiary D. Primary

Description : What do you call the service area of a standard AM broadcast where fading is allowed but not objectionable co-channel interference? A. Experimental B. Secondary C. Tertiary D. Primary

Last Answer : B. Secondary

Most animals that live in deep oceanic waters are (a) tertiary consumers (b) detritivores (c) primary consumers (d) secondary consumers.

Description : Most animals that live in deep oceanic waters are (a) tertiary consumers (b) detritivores (c) primary consumers (d) secondary consumers.

Last Answer : (b) detritivores

Which of the following is expected to have the highest value (gm/m2 /yr) in a grassland ecosystem? (a) Secondary production (b) Tertiary production (c) Gross production (GP) (d) Net production (NP

Description : Which of the following is expected to have the highest value (gm/m2 /yr) in a grassland ecosystem? (a) Secondary production (b) Tertiary production (c) Gross production (GP) (d) Net production (NP

Last Answer : (c) Gross production (GP)

Which of the following in sewage treatment removes suspended solids?(a) Secondary treatment (b) Primary treatment (c) Sludge treatment (d) Tertiary treatment

Description : Which of the following in sewage treatment removes suspended solids? (a) Secondary treatment (b) Primary treatment (c) Sludge treatment (d) Tertiary treatment

Last Answer : (b) Primary treatment

Tap roots of plants are also called as a. Secondary roots b. Adventitious roots c. Primary roots d. Tertiary roots

Description : Tap roots of plants are also called as a. Secondary roots b. Adventitious roots c. Primary roots d. Tertiary roots

Last Answer : Primary roots