Give the general name of the class of compounds having the general formula C n H 2n-2 . Write the first member of this homologous series.

Give the general name of the class of compounds having the general formula

C n H 2n-2 . Write the first member of this homologous series.
by

1 Answer

Answer :

Alkynes. The first member is Ethyne.
by

Related questions

The general formula of a homologous series of carbon compounds is C n H 2n . Write the molecular formula of the second and fourth member of the series.

Description : The general formula of a homologous series of carbon compounds is C n H 2n . Write the molecular formula of the second and fourth member of the series.

Last Answer : Second member is n=3, C 3 H 2x3 = C 3 H 6 Fourth member is n=5, C 5 H 2x5 = C 5 H 10

Write the molecular formulae of the third and fifth member of homologous series of carbon compounds represented by the general formula C n H 2n+2

Description : Write the molecular formulae of the third and fifth member of homologous series of carbon compounds represented by the general formula C n H 2n+2

Last Answer : Third member n = 3, C 3 H 2x3+2 = C 3 H 8 Fifth member n = 5, C 5 H 2x5+2 = C 5 H 12

The hydrocarbon having the general formula C n H 2n is

Description : The hydrocarbon having the general formula C n H 2n is

Last Answer : alkene.

Hydrocarbons having the general formula C n H 2n+2 are called

Description : Hydrocarbons having the general formula C n H 2n+2 are called

Last Answer : alkanes.

What is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds? -Chemistry

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Last Answer : —CH2— is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds.

Write the molecular formula of first two members of homologous series having functional group – OH. -Science

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Last Answer : The general formula for the homologous series of functional group −OH is CnH2n+1OH. The two consecutive members of this series are: a. CH3OH(Methanol) b. CH3CH2OH (Ethanol) where n is 1 and 2 respectively​The molecular formula for both of them are CH4O and C2H6O.

In homologous series one member differs from the preceding member by

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Last Answer : CH 2 group.

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Last Answer : A. V(G) = e - n + 2

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Description : Which of the following is not observed in a homologous series? Give reason for your choice. -Science

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Last Answer : 6.2n - 3.7n = 85 + 45; 2.5n = 130; n = 130/2.5; n = 52

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Last Answer : b. 2n - 3

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Last Answer : Let l+m−2nlogx​=m+n−2llogy​=n+l−2mlogz​=k(say) So, we get logx=k(l+m−2n) ....... (i) logy=k(m+n−2l) ....... (ii) logz=k(n+l−2m) ....... (iii) ∴logx+logy+logz=k(l+m−2n)+k(m+n−2l)+k(n+l−2m) ⇒logx+logy+logz=kl+km−2kn+km+kn−2kl+kn+kl−2km ⇒log(xyz)=0 ⇒logxyz=log1 ⇒xyz=1

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Description : If (log x)/(l + m - 2n) = (log y)/(m + n - 2l) = (log z)/(n + l - 2m), then xyz is equal to : -Maths 9th

Last Answer : (b) 1Let \(rac{ ext{log}\,x}{l+m-2n}\) = \(rac{ ext{log}\,y}{m+n-2l}\) = \(rac{ ext{log}\,z}{n+l-2m}\) = k. Thenlog x = k(l + m – 2n), log y = k(m + n – 2l); log z = k(n + l – 2m) ⇒ log x + log y + log z = k(l + m – 2n) + k(m + n – 2l) + k(n + l – 2m)⇒ log(xyz) = 0 ⇒ log(xyz) = log 1 ⇒ xyz = 1.

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If C(2n, 3) : C(n, 2) = 12 : 1 find n. -Maths 9th

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Last Answer : (D) All the above 

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Overlap in a leaf spring is (a) L/n (b) L/2n (c) L/3n (d) None

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Last Answer : (A) N precision resistors.

Light is normally incident on a thin soap film and is reflected. If the wavelength of this light is "L" and the index of refraction of the soap film is "N", complete destructive interference will occur for a film thickness of: w) L / 8N x) L / 4N y) L / 2N z) 3L / 4N

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Last Answer : ANSWER: Y -- L / 2N 

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................... comparisons are necessary in the worst case to find both the maximum and minimum of n numbers. (A) 2n-2 (B) n + floor(lg n) - 2 (C) floor(3n/2) - 2 (D) 2 lg n – 2

Description : ................... comparisons are necessary in the worst case to find both the maximum and minimum of n numbers. (A) 2n-2 (B) n + floor(lg n) - 2 (C) floor(3n/2) - 2 (D) 2 lg n – 2

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A full binary tree with n leaves contains (A) n nodes (B) log2 n nodes (C) 2n –1 nodes (D) 2n nodes

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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)

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

The members of a homologous series have (a) The same physical properties (b) Different functional groups (c) The same chemical properties (d) Different methods of preparation

Description : The members of a homologous series have (a) The same physical properties (b) Different functional groups (c) The same chemical properties (d) Different methods of preparation

Last Answer : Ans:(c)

Select the hydrocarbons which are members of the same homologous series.

Description : Select the hydrocarbons which are members of the same homologous series.

Last Answer : C 5 H 10 , C 3 H 8 , C 6 H 10 , C 4 H 10 , C 7 H 12 , C 8 H 16 Alkanes: C 3 H 8 and C 4 H 10 , Alkenes: C 5 H 10 and C 8 H 16 , Alkynes: C 6 H 10 and C 7 H 12

State the characteristics of members of a homologous series.

Description : State the characteristics of members of a homologous series.

Last Answer : a) They have properties that vary in a regular and predictable manner. b) They have similar chemical properties. c) They have gradually varying physical properties. d) Their formula fit the general molecular formula e) The ... H 6 or C 5 H 12 and C 6 H 1 4 differ by one carbon and two hydrogen.

Name the homologous series of aliphatic hydrocarbons.

Description : Name the homologous series of aliphatic hydrocarbons.

Last Answer : Aliphatic hydrocarbons have three homologous series – Alkanes, Alkenes and Alkynes

What is homologous series?

Description : What is homologous series?

Last Answer : A homologous series is a family of organic compounds with the same general formula, similar chemical properties and successive members differing by – CH 2 .

Which of the following statements is/are true about a homologous series :-

Description : Which of the following statements is/are true about a homologous series :-

Last Answer : Which of the following statements is/are true about a homologous series :- A. Different ... but different chemical properties D. All of them

Write a program to declare class having data member as hrs, mins, secs. Write constructor to assign values and destructor to destroy values. Accept & display data for one object.

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Last Answer : #include<iostream.h> #include<conio.h> class time { private: int hrs, mins,sec; public: time(int h,int m,int s) { hrs=h; mins=m; sec=s; } ~time() { cout<< hours ... } }; void main() { time t(2,43,56); t.display(); getch(); }

Organic compounds having same molecular formula with different structural arrangement of atoms in them is known as

Description : Organic compounds having same molecular formula with different structural arrangement of atoms in them is known as

Last Answer : isomerism.

What do you call the compounds having the same molecular formula but different structural arrangements of atoms?

Description : What do you call the compounds having the same molecular formula but different structural arrangements of atoms?

Last Answer : Isomers

Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers

Description : Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers

Last Answer : A

Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers

Description : Compounds having the same structural formula but differing in spatial configuration are known as (A) Stereoisomers (B) Anomers (C) Optical isomers (D) Epimers

Last Answer : (A) Stereoisomers

Write the structural formula of the first member of Cycloalkanes.

Description : Write the structural formula of the first member of Cycloalkanes.

Last Answer : The first member of the Cycloalkanes is cyclopropane (C3H6). Its structure is

Write the molecular formula for each of the following compounds:

Description : Write the molecular formula for each of the following compounds:

Last Answer : 1. Sulphur trioxide 2. Iron (II) sulphide and 3. Ammonia

Alkali metal hydrogen fluorides have a formula `M[HF_2]`. They are found to contain a linear symmetrical anion having an overall F—H—F distance of 2.2

Description : Alkali metal hydrogen fluorides have a formula `M[HF_2]`. They are found to contain a linear symmetrical anion having an overall F—H—F distance of 2.2

Last Answer : Alkali metal hydrogen fluorides have a formula `M[HF_2]`. They are found to contain a linear symmetrical ... F-atoms through two T bonds in the anion.

What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor? -Biology

Description : What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor? -Biology

Last Answer : Yes, It is necessary that homologous structures always have a common ancestor. As explained in the above example, the basic structure of arm of human and wing of bat is similar but ... different function in different vertebrates. Therefore, this shows that they have evolved from a common ancestor.

Give examples of homologous organs?

Description : Give examples of homologous organs? 

Last Answer : Arm of a monkey, flipper of a whale and wing of a bat are homologous organs.