Following are the steps involved in the experiment- 'To determine the percentage of water absorbed by raisins'. They are not in proper sequence.- Soak the raisins in fresh water.
- Weight dry raisins.
- Weigh soaked raisins.
- Wipe out soaked raisins. The correct sequence of steps is
(a) I
Correct Answer: (b) II, I, IV, III
Explanation:
During an experiment to determine the percentage of water absorbed by raisins, a definite amount of raisins are taken and their dry weight is measured.
These raisins are placed in a definite measured volume of water (hypotonic solution).
Raisins absorb water under the osmotic process and swell up.
Osmosis is the movement of solvent or water molecules from a higher concentration area to a lower concentration area through a semipermeable membrane to attain equilibrium.
Water movement into the cells of raisins through their cell membrane continues till cells become turgid in nature.
Soaked raisins are wipe out and weigh the soaked raisins.
The difference in the weight of the raisins before soaking and after soaking determines the amount of water absorbed by them.
Related Articles
- The colour of raisins as used in the experiment, ‘To determine the percentage of water absorbed by raisins’, was(a) White (b) Yellow (c) Dark brown (d) Pink
- During the course of an experiment, to determine the percentage of water absorbed by raisins, the raisins are weighed(a) Every half an hour. (b) Every hour.(c) Once- only after completing the experiment. (d) Two times- Before soaking and after soaking for three hours.
- Dry raisins were soaked in water for 2 hours to determine the percentage of water absorbed by raisins. Before final weighing of swollen raisins, the extra water left on the surface of soaked raisins was removed by:(a) Dry cotton wool (b) Hot air blower (c) Gently rubbing with cotton cloth (d) Filter paper
- While performing the experiment with raisins to determine the percentage of water absorbed by them, a student made the following measurements:Mass of water in the beaker = 40 gMass of raisins before soaking = 5 gMass of raisins after soaking for 2 hours = 8 gMass of water left in the beaker after three experiments = 35 g The percentage of water absorbed by raisins is:$(A) \frac{40 g -35 g}{35 g} ×100$$(B) \frac{40 g- 35 g}{40 g} ×100$$(C) \frac{8 g-5 g}{8 g} ×100$$(D) \frac{8g - 5g}{5 g} ×100$
- List in proper sequence the steps of the experiment for determining the approximate focal length of a given concave mirror by obtaining the image of a distant object.
- What are the steps involved in RNA Processing?
- What are the steps involved in preparing the trial balance?
- What are the Steps Involved in Effective Collection Procedure?
- What Are the Steps Involved in Implementing Quality Management?
- Various steps involved to obtain wool from fleece are given here.(i) Picking out the burrs(ii) Dyeing in various colours(iii) Shearing(iv) Scouring(v) SortingWrite the above steps in the correct sequence in which they are carried out.
- What are the steps involved in Association Rule Clustering System?
- What are the steps involved in risk management in information security?
- Describe the steps involved in getting clarified water from wastewater.
- The steps involved in observing a slide under a microscope are given below. They are not in proper sequence.I. Focus the object under high power of the microscope.II. Place the slide on the stage of the microscope.III. Arrange the mirror to reflect maximum light to the slide.IV. Focus the object under low power of the microscope.The proper sequence of steps is(a) II, III, IV, I (b) I, II, III, IV(c) IV, III, II, I (d) III, I, II, IV
- List in Proper Sequence Four Steps of Obtaining Germinating Dicot Seeds
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies