Q1. What is the chemical symbol of lead and mercury?
Q2. Monika finds that all samples of pure water have Hydrogen and Oxygen in ratio of 1:8 by mass. Which law does the statement agree to?
Q3. 10g of silver nitrate solution is added to 10g of sodium chloride solution. What change in mass do you expect after the reaction and why?
Q1. What is the theme of the story deep waters?
Answer: Deep Water teaches its audience that it is not death; rather, everyone is afraid of dying. Otherwise, the fear would overcome us, therefore we must battle it. Past memories can also have a permanent impact on a person's thinking.
जन्म : 2 अक्टूबर 1904, मुगलसराय
निधन: 11 जनवरी 1966, ताशकंद, उज्बेकिस्तान ट्रेंडिंग
लाल बहादुर शास्त्री भारत के दूसरे प्रधानमंत्री थे। उन्होंने 1964 से 1965 तक भारत के प्रधान मंत्री के रूप में कार्य किया था। 1965 में भारत-पाक युद्ध के दौरान वह भारत के प्रधान मंत्री थे।
Radha: Hey brother, what are you doing?
Brother: Not much, just scrolling through social media.
Radha: Have you finished your homework yet?
Brother: Yeah, I finished it earlier.
The gravitational constant (G) is a fundamental physical constant that appears in Newton's law of universal gravitation. It determines the strength of the gravitational force between two objects, and it is always the same, regardless of the distance between the objects or their masses. The value of G is approximately 6.674 x 10⁻¹¹ N(m/kg)².
Chapter: Chemical Effects of Current
Directions: Read the following and answer the questions given below:
Case Study
Take out carbon rods carefully from two discarded cells. Clean their metal caps with sandpaper. Wrap copper wires around the metal caps of the carton rods to form electrodes and join them to a battery, Pour a cupful of water into a glass/plastic bowl. Add a teaspoonful of salt or a few drops of lemon juice to water to make it more conducting. Now immerse the electrodes in this solution. Make sure that the metal caps of the carbon rods are outside the water. Wait for 3-4 minutes, Observe the electrodes carefully.
