Home
Class 10
CHEMISTRY
In the experimental set up to show that ...

In the experimental set up to show that `"CO_(2)` is given out during respiration", name the substance taken in the small the small test tube kept in the conical flask. State its function and the consequences of its use.

Text Solution

AI Generated Solution

### Step-by-Step Solution: 1. **Identify the Substance in the Test Tube**: - The substance taken in the small test tube kept in the conical flask is **potassium hydroxide (KOH)** solution. 2. **State the Function of Potassium Hydroxide**: - The function of potassium hydroxide in this experiment is to **absorb carbon dioxide (CO₂)** from the environment. This is crucial because it allows us to measure the amount of gas produced during respiration without interference from CO₂ in the air. ...
Promotional Banner

Similar Questions

Explore conceptually related problems

In the experiment to show that CO_(2) is given out during respiration, which chemical is taken in the small test tube two show the liberation of CO_(2) gas

In the experimental set-up to show that "the germinating seeds give out the carbon dioxide." Answer the following question: (i) Why do we keep the conical flask airtight? (ii) Name the substance kept in the small test tube inside the conical flaskt. Write its role. (iii) Why does water rise in the delivery tube?

Study the experimental set-up given below and answer the following questions: Name the liquid filled in the test tube. Explain how the above mentioned chemical would interfere with the experiment.

The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental set -up was placed in bright sunlight. Study the diagram and answer the following questions : When the weight of the test tube (A & B) is taken before and after the experiment, what is observed? Give reasons to justify your observation in A & B.

The diagram given below represents an experimental set-up to demonstrate a vital process. Study the same and then answer the questions that follow : Keeping in mind the root hair cell and its surroundings, name the part that corresponds to (1) concentrated sugar solution (2) parchment paper and (3) water in the beaker.

The diagram given below represents an experimental set-up to demonstrate a vital process. Study the same and then answer the questions that follow : Name any other substance that can be used instead of parchment paper in the above experiment.

A person in a lift is holding a water jar, which has a small hole at the lower end its side. When the lift is at rest, the water jet coming out of the hole hits the floor of the lift at a distance d of 1.2 m from the person. In the following, state of the lift’s motion is given in Column I and the distance where the water jet hits the floor of the lift is given in Column II. Match the statements from list I with those in list II and select the correct answer using the code given below the lists.

Water is filled to a height of 2.5 m in a container lying rest on a horizontal surface as shown in the figure. The bottom of the container is square shaped of side sqrt(3) and its top is open. There is a very small hole in the vertical wall of the container near the bottom. A small cap closes the hole. The hole gets opened when pressure near the bottom becomes more than 4 xx 10^(4) pascal a, What minimum acceleration can be given to the container in the positive x -direction so that the cap will come out of the hole? Assume water does not spill out of container when the container accelerates. Find the velocity of efflux as soon as the container starts moving with the acceleration calculated in part a. of the question.

An experimental setup of verification of photoelectric effect is shown in the diagram. The voltage across the electrode is measured with the help of an ideal voltmetar, and which can be varied by moving jockey 'J' on the potentiometer wire. The battery used in potentiometer circuit is of 20 V and its internal resistance is 2omega . The resistance of 100 cm long potentiometer wire is 8 omega . The photo current is measured with the help of an ideal ammeter. Two plates of potassium oxide of area 50 cm^(2) at separation 0.5 mm are used in the vacuum tube. Photo current in the circuit is very small so we can treat potentiometer circuit an indepdent circuit. The wavelength of various colours is as follows : |{:("Light",underset("Violet")(1),underset("Blue")(2),underset("Green")(3),underset("Yellow")(4),underset("Orange")(5),underset("Red")(6)),(lambda "in" Årarr,4000-4500,4500-5000,5000-5500,5500-6000,6000-6500,6500-7000):}| When radiation falls on the cathode plate a current of 2muA is recorded in the ammeter. Assuming that the vecuum tube setup follows ohm's law, the equivalent resistance of vacuum tube operating in this case when jockey is at end P.

A uniform rod of length L and mass M is lying on a frictionless horizontal plane and is pivoted at one of its ends as shown in Fig. There is no friction at the pivot. An inelastic ball of mass m is fixed with the rod at a distance L//3 from O . A horizontal impulse J is given to the rod at a distance 2L//3 from O in a direction perpendicular to the rod. Assume that the ball remains in contact with the rod after the collision and impulse J acts for a small time interval /_\t . Now answer the following questions: Find the magnitude of the impulse applied on the pivot during the time interval /_\t