Solution which does not change colour in presence of any indicator is consider to be __
Solution which does not change color in the presence of any indicator is considered to be __ Answer: Neutral Indicators... View Article
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If the radii of the circular ends of a conical bucket which is 45 cm high be 28 cm and 7 cm, find the capacity of the bucket.
Given, Height of the conical bucket = 45 cm Radii of the 2 circular ends of the conical bucket are... View Article
Explain redox reaction
The reaction in which oxidation and reduction reactions always occur simultaneouslycalled redox reaction or Oxidation-Reduction Reaction.The term ‘redox’ is a... View Article
Write a short note on limiting reagents
A substance that is fully absorbed when the chemical reaction is complete is called limiting reagent.The reaction comes to an... View Article
Explain cohesion tension theory
Cohesion-tension theory was proposed by Dixon and Jolly in 1894. Water molecules have a strong mutual force of attraction called... View Article
Explain the working of hourglass
The hourglass was used to measure time in ancient times.The working principle of the hourglass is the same asa water... View Article
Define sedimentation
Pure substances are obtained only after refining, filtration of any mixture. Various methods are involved in separating a mixture. To... View Article
Show that the square of any positive odd integer is of the form 4m+1,for same integer n
Let ‘a’ be any positive integer. Then, According to Euclid’s division lemma, a=bq+r According to the question, when b =... View Article
Which is greater – 2/9 or 0
Which is greater – 2/9 or 0 0 is greater than -2/9. Negative integers have smaller than zero. Zero is... View Article
How do saprophytes digests its food?
The living organisms that live and feed on dead and decaying organisms are called saprophytes. The digestion process in saprophytes... View Article
Define physical change
The type of change in which the physical properties of a material change. It can be changed in shape, state... View Article
Define perpendicular lines
When two lines meet each other at right angle then those lines are referred to as perpendicular lines. When a... View Article
List out the applications of electric cell
The branch of chemistry which deals with the conversion of chemical energy into electrical energy and vice versa is called... View Article
What is electric cell?
Answer: The branch of chemistry which deals with the conversion of chemical energy into electrical energy and vice versa is... View Article
Identify oxidation and reduction with their agents: 1. 2Al+ Fe2O3 gives 2Fe + Al2O3
2Al+ Fe2O3 →2Fe + Al2O3 The given reaction is a redox reaction. As oxidation and reduction are taking place simultaneously.... View Article
Calculate vapor pressure of an aqueous solution of 1 molal glucose solution at 100 degree Celsius…..
Given: An aqueous solution of 1 molal glucose solution at 100 ºC We need to find the vapor pressure Solution... View Article
Give the applications of ultrasound in the field of medicine
Ultrasound is a sound wave comprising of frequency greater than the hearing frequency of a human being. The frequency of... View Article
Write a short note on pi
The word Pi in mathematics is defined as the ratio of the diameter of a circle against its circumference. Pi... View Article
What are the steps involved in the nutrition of amoeba? Explain them.
The process of obtaining food by amoeba is called Phagocytosis. Phagocytosis is the process by which a cell engulfs a... View Article
If one zero of 2x^2 – 3x + k is reciprocal to the other, then find the value of k.
Answer: Given: Quadratic equation:2x² – 3x + k One of the zeros of 2x² – 3x + k is reciprocal... View Article
