Home
Class 10
CHEMISTRY
IUPAC names of a few esters are given be...

IUPAC names of a few esters are given below:
1. Ethyl propanoate
2. Propyl methanoate
3. Methyl butanoate
4. Ethyl butanoate
The ester(s) which contain(s) ten hydrogen atoms per molecule is/are

A

1 only

B

4 only

C

1 and 3 only

D

1 and 2 only

Text Solution

AI Generated Solution

The correct Answer is:
To determine which of the given esters contain ten hydrogen atoms per molecule, we will analyze each ester one by one. ### Step 1: Understand the structure of esters Esters are organic compounds formed from the reaction of an alcohol and a carboxylic acid. The general formula for an ester can be represented as RCOOR', where R and R' represent hydrocarbon chains. ### Step 2: Analyze each ester 1. **Ethyl propanoate** - Ethyl (C2H5) + Propanoate (C3H5O2) - Structure: - Ethyl: C2H5 - Propanoate: C3H5O - Total Carbons: 2 (from ethyl) + 3 (from propanoate) = 5 - Total Hydrogens: 5 (from ethyl) + 5 (from propanoate) = 10 - **Hydrogens = 10** 2. **Propyl methanoate** - Propyl (C3H7) + Methanoate (C1H3O2) - Structure: - Propyl: C3H7 - Methanoate: C1H3O - Total Carbons: 3 (from propyl) + 1 (from methanoate) = 4 - Total Hydrogens: 7 (from propyl) + 3 (from methanoate) = 10 - **Hydrogens = 10** 3. **Methyl butanoate** - Methyl (C1H3) + Butanoate (C4H7O2) - Structure: - Methyl: C1H3 - Butanoate: C4H7O - Total Carbons: 1 (from methyl) + 4 (from butanoate) = 5 - Total Hydrogens: 3 (from methyl) + 7 (from butanoate) = 10 - **Hydrogens = 10** 4. **Ethyl butanoate** - Ethyl (C2H5) + Butanoate (C4H7O2) - Structure: - Ethyl: C2H5 - Butanoate: C4H7O - Total Carbons: 2 (from ethyl) + 4 (from butanoate) = 6 - Total Hydrogens: 5 (from ethyl) + 7 (from butanoate) = 12 - **Hydrogens = 12** ### Step 3: Conclusion The esters that contain ten hydrogen atoms per molecule are: - Ethyl propanoate - Propyl methanoate - Methyl butanoate ### Final Answer The esters which contain ten hydrogen atoms per molecule are: 1. Ethyl propanoate 2. Propyl methanoate 3. Methyl butanoate ---
To determine which of the given esters contain ten hydrogen atoms per molecule, we will analyze each ester one by one. ### Step 1: Understand the structure of esters Esters are organic compounds formed from the reaction of an alcohol and a carboxylic acid. The general formula for an ester can be represented as RCOOR', where R and R' represent hydrocarbon chains. ### Step 2: Analyze each ester 1. **Ethyl propanoate** ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CARBON AND ITS COMPOUNDS

    SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION (HOTS) |5 Videos

  • ACIDS, BASES AND SALTS

    SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION (HOTS) |5 Videos

  • CHEMICAL REACTIONS AND EQUATIONS

    SCIENCE OLYMPIAD FOUNDATION |Exercise MULTIPLE CHOICE QUESTIONS|20 Videos

Similar Questions

Explore conceptually related problems

The names of some compounds are given below: (i) 5-Ethyl-3-methylheptane (ii) 4-Isopropyl-5-sec-butyldecane (iii) 2-Ethylpentane Why are the given names incorrect?

The IUPAC name of given compound is (1) 1-Ethyl-3-methyl cyclohexane (2) 1-Methyl-3-ethyl cyclohexane (3) 3-Methyl-I-ethyl cyclohexane (4) 3-Ethyl-I-methyl cyclohexane

Knowledge Check

  • Which of the following is correct? (i) 2 -Methylpentane has one isopropyl group. (ii) 3 -Methylhexane contains only one methyl, one ethyl, and one n -propyl group. (iii) 3 - Ethylpentane is the lowest molecular mass alkane which has ethyl group as the subsitituent. (iv) 2,3 -Dimethylbutane has two isopropyl groups.

    A
    (1) (i), (ii),(iii), (iv)
    B
    (2) (i), (iii),(iv)
    C
    (3) (i), (ii), (iii)
    D
    (4) (ii), (iii), (iv)

  • In each question below is given a set of 4 sentences S1, S2, S3 and S4 which form a meaningful paragraph. One of the sentences has been removed. Below each set are provided 5 options, one of which may be used to fill in the missing sentence. The letter of the option which can be used in place of the missing sentence is your answer. S1 I was a teacher for many years S2 I have taught thousands S3 ................S4 But there are a few whom I have never forgotten

    A
    Some students have difficulty remembering
    B
    I do not remember all of them
    C
    There are some students who are brilliant
    D
    Each student is unique

  • In each question below is given a set of 4 sentences S1, S2, S3 and S4 which form a meaningful paragraph. One of the sentences has been removed. Below each set are provided 5 options, one of which may be used to fill in the missing sentence. The letter of the option which can be used in place of the missing sentence is your answer. Example S1 Some animals live in lakes. S2................. S3 Its shelf is useful

    A
    There are many lakes in India
    B
    Other animals live in the sea
    C
    They have all been killed
    D
    The turtle is one such animal

    • Similar Questions

    Explore conceptually related problems

    Write the IUPAC name (s) and structure (s) of the simplest alkane (s) with lowest molecular mass (or the least number of C atoms) which contains 1^(@), 2^(@), 3^(@) and 4^(@) carbon atoms.

    The IUPAC name of the given compound 5,6 - Diethyl-3-methyl-4- decene 7-methyl-heptene 6-methyl heptene 3,3-diethyl-5-ethyl-4-decene

    Structures and IUPAC names of some hydrocarbons are given below. Explain why the names given in the parentheses are incorrect. underset(["and not 3,4,7-Trimethyloctane"])underset(2,5,6- "Trimethyloctane")(CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(2)-CH_(2)-underset(CH_(3))underset(|)(CH)-underset(CH_(3))underset(|)(CH)-CH_(2)-CH_(3)) underset(["and not 5-Ethyl-3-methylheptane"])underset("3-Ethyl-5-methylheptane")(CH_(3)-CH_(2)-underset(CH_(2)CH_(3))underset(|)(CH)-CH_(2)-underset(CH_(3))underset(|)(CH)-CH_(2)-CH_(3))

    (a) Give the Claisen ester condensation product of ethyl butanoate. (b) Why does the Claisen ester condensation of ethyl-2-methyl propanoate (I) not take place ? ( c) Why does Claisen condensation of (I) take place by the use of Ph_3 C^(Ө) Na^(oplus) as a base ?

    The number of carbon atoms in exactly 12 g C^(12) is called Avogadro's number , N_(A) (6.022 xx 10^(23)) . One mole is the amount of material which contains Avogradro's number of particle. These definitions emphasize that the mole refers to a fixed number of NA^(+) b Avogadro's number of atoms , electrons to refer to a mole of helium , a mole of electrons , or a mole of NA^(+) by Avogadro's number of atoms, electrons or ions respectively. On the other hand, phrases like "one mole of hydrogen" can be ambiguous , and should be restated as "one mole of hydroden atoms" or " one mole fo hydrogen molecules." But it is a matter of common practice among chemists , however , to let the name of the element stand for its mos common form. Thus one mole of O_(2) is frequently referred to as one mole of oxygen , whereas one moles of O is called one mole of oxygen atoms. Suppose if we take one mole molecules fo H_(2)SO_(4) then it contain 2 moles of H atom 1 mole of S atom and 4 moles of O atom. It can also be said that moles of oxygen molecules is (4)/(2) =2 mole. Sulphur exists in different allotropic forms like S_(2) S_(6) 'and" S_(8) etc. If equal weight of these three ar taken in separate containers , then the ratio of number of atoms present in them is :

    Home
    Profile