Question
Raina while doing certain reactions observed that heating of substance ' $X$ ' with vinegar like smell with a substance ' $Y$ ' (which is used as an industrial solvent) in presence of conc. Sulphuric acid on a water bath gives a sweet-smelling liquid ' $Z$ ' having molecular formula $C _4 H _8 O _2$. When heated with caustic soda $( NaOH )$, ' $Z$ ' gives back the sodium salt of and the compound ' $Y$ '
Identify ' $X$ ', ' $Y$ ', and ' $Z$ '. Illustrate the changes with the help of suitable chemical equations.

Answer

$X$ - Ethanoic acid/ acetic acid/ $CH _3 COOH$
$Y$ - Ethanol/ Ethyl alcohol/ $C _2 H _5 OH$
$Z$ - Ethyl ethanoate/ Ester $- CH _3 COOC _2 H _5$
Image

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

  1. Complete and balance the following chemical equations:
  1. $\text{Al}_2\text{O}_3+\text{HCl}\xrightarrow{ \ \ \ \ \ \ \ \ \ \ \ \ }$
  2. $\text{K}_2\text{O}+\text{H}_2\text{O}\xrightarrow{ \ \ \ \ \ \ \ \ \ \ \ \ }$
  3. $\text{Fe}+\text{H}_2\text{O}\xrightarrow{ \ \ \ \ \ \ \ \ \ \ \ \ }$
  1. An element ‘X’ displaces iron from the aqueous solution of iron sulphate. List your observations if the element ‘X’ is treated with the aqueous solutions of copper sulphate, zinc sulphate and silver nitrate. Based on the observations arrange X, Zn, Cu and Ag in increasing order of their reactivities.
What is the difference between excretion and defecation? Explain the process of excretion in humans.
A person buys two electrical devices P and Q for lighting purposes in his house. The device P consumes only 5 units of electricity in a month but device Q consumes 15 units of electricity in a month when used for the same number of hours daily. The device Q wastes a lot of electricity by radiating energy C but P does not do so.
  1. What type of device is (i) P, and (ii) Q?
  2. Name one component which is present in Q but not in P.
  3. Name the energy C.
  4. Which device is more energy efficient: P or Q?
  5. Which fossil fuel is most likely to be conserved if all of us switch over to devices like P?
Explain why, though both a plane mirror and a sheet of paper reflect light but we can see the image of our face in a plane mirror but not in a sheet of paper.
Give a detailed explanation on the following.Versatile nature of carbon.
i. What is meant by power of a lens? Define its Sl unit.
ii. You have two lenses A and B of focal lengths +10 cm and - 10 cm, respectively. State the nature and power of each lens. Which of the two lenses will from a virtual and magnified image of an object placed 8 cm from the lens? Draw a ray diagram to justify your answer.
The human males use a device X made of a very thin rubber sheet as a covering on the male organ to prevent pregnancy. This device traps the gametes Y in it. In order to prevent pregnancy, the human females use a device Z which is a circle of rubber with a metal spring around it. The device Z is put inside the vagina to cover the cervix. It stops Y from going into the uterus.
  1. What is device X?
  2. What are Y?
  3. Name the device Z.
  4. What is the general name of these methods of birth control (or preventing pregnancy)?
  5. The use of which contraceptive device, X or Z, can protect the persons from sexually transmitted diseases?
Why do we need to manage our natural resources?
The speed of light in air is $3 \times 10^8 m / s$. In medium $X$ its speed is $2 \times 10^8 m / s$ and in medium $Y$ the speed of light is $2.5 \times 10^8 m / s$. Calculate:
a. air ${ }^n x$
b. air ${ }^n y$
c. $X^n y$
How do carbohydrates, fats and proteins get digested in human beings?