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IFBI provides sample questions if you write or call and request them. You can use these questions and answers to study for the exam.
Use of paper avoid the contamination of the sample.
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NTSE previous year paper and sample paper available on Aryan Classes website.
Take a sample of the paper and soak overnight in water, and soak another piece in alcohol. If ink had been present, either solution should be discoloured. If in doubt, use plain paper: white or brown wrapping paper.
Yes, because the definition of a solution is a homogenous mixture. Therefore, one part of the solution will have the sample definite properties as the entire solution.
first measure the volume of the sample solution needed to change the blue color of the DCPIP solution into colourless. then, weigh the mass of the sample solution. finally calculate the concentration by using the formula: volume required t change the color of DCPIP solution (dm) per mass of the sample solution (g)
There are answers elsewhere on the web. In summary, a titrand is the solution (or other substance) which one has in a conical flask or beaker into which the titrant is titrated from a burette.
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Yes. There a number of people who have ISRO sample Paper for Research Program.
You can prove there is glucose in a sample by using Benedict's Solution. Heat up the sample, and add the Benedict's Solution. Assuming the solution is clear, if glucose is present it will change colour to red, or yellow, or green. If not, it will stay clear.