TextBook Solutions
- वायु में जलाने से पहले मैग्नीशियम रिबन को साफ क्यों किया जाता है ? वायु में जलाने से पहले मैग्नीशियम रिबन को साफ किया जाता है ताकि वह जलते समय पूरी तरह वायु के संपर्क में रहे। 2
- Food chains are very important for the survival of most species. 1. b) 100 J 2. c) Third Trophic level 3 a) Act at every trophic level of the food chain 4. c) Energy is unidirectional and matter is repeate... 1
- A biogas plant is where biogas is produced by fermenting biomass. 1. b) B 2. b) its non-renewable 3. (b) Waste water feed → digester → biogas → biogas storage → generator 4. (c) (iii) and (iv) 5. (d) presen... 1
- The primary reason behind the formation of the toxic foam is high phosphate content in the wastewater because of deterge 1. a) 10-11 2. (b) high concentration of hydroxide ion (OH⁻) and low concentration of hydronium ion (H₃O⁺) 3. (c) S<Q<R<P 4. (a) decreased l... 1
- For an internal combustion engine to move a vehicle down the road, it must convert the energy stored in the fuel into 1 - (d) 2 - (c) Oxidation & Exothermic reaction 3 - (a) 4 - (a) Limited supply of air leads to incomplete combustion of fuel 5 - (b) Nitroge... 1
- The reaction between MnO2 with HCl is depicted in the following diagram. It was observed that a gas with bleaching 1(c) redox reaction 2(a) dry Ca(OH)_(2 ) 3(a)MnO₂ is getting reduced whereas HCl is getting oxidized 4(b) Basic oxide 5(b) Reaction will not... 1
- Marble’s popularity began in ancient Rome and Greece, where white and off-white marble were used to construct a variety 1. Calcined gypsum 2. 0-5 min 3. photosynthesis 4. polluted water is acidic in nature hence it reacts with calcium carbonate 5. calcium oxid... 1
- The ages of two friends Manjit and Ranjit differ by 3 years. Manjit's father Dharam is twice as old Given data: The age difference between Manjit (M) and Ranjit (R) is 3 years: M - R = 3 Manjit's father, Dharam (D), is twice as old as Manji... 2
- Five years hence, father's age will be three times the age of his son. Five years ago, Answer: Father is 40 years old and son is 10 years old. Let the father's present age be x years and the son's y years. Five years hence: x +... 1
- A and B are friends and their ages differ by 2 years. A's father D Given Data: A and B are friends, and their ages differ by 2 years: A - B = 2 A's father D is twice as old as A: D = 2A B is twice as old as... 1
- On selling a T. V. at 5% gain and a fridge at 10% gain,Reliance digital gains Rs 2000. But if its sells the Answer: T.V. costs Rs. 20,000 and fridge costs Rs. 10,000. Let the cost price of the T.V. be Rs. x and of the fridge Rs. y . Case 1: 5% gain... 1
- P and Q each have certain number of apples. A says to B, “if you give me 10 of your apples, Answer: P (A) has 70 apples and Q (B) has 50 apples. (The question names the friends P and Q but calls them A and B in the conversation; A i... 1
- How was Sebastian Shultz's memory stored in Michael's disk? Did Michael discover that? At the time of the accident, Sebastian was plugged on to the computer. The computer had saved his memory in its own. When Sebastian’s family... 1
- How had Sebastian Shultz entered the games? When Sebastian met an accident he was playing a psycho drive game. Therefor, his memory was captured in the game and as a result he entered... 1
- Narrate the accident that injured Sebastian Shultz. One day Sebastian was moving somewhere in his car. He was playing phycho drive games on his laptop, suddenly he met with an accident. When b... 1
- The second attempt to rescue Sebastian Shultz too was disastrous. Give reasons. The second attempt to rescue Sebastian Shultz too was disastrous. The main objective of the second game, that was Dragon Quest was to rescue... 1
- Why did Michael fail in rescuing Sebastian Shultz the first time? In the first game, Wild West, Sebastian Shultz met Michael for the first time. As the real objective of the game was to fight with Black Eye... 1
- What help did Sebastian Shultz ask Michael for? How did he convey this message? Sebastian Shultz asked Michael for rescuing him from the game he had stuck into. He conveys this threw a printed message from the printer. 1
- Describe the first place where Michael was virtually transported. The first place where Michael was virtually transported was the dusty track of a town of west in the game Wild West. He found himself in a S... 1
- What kind of computers fascinated Michael and his dad? Why? Computers with advance configuration along with a printer, modem, speaker and scanner fascinated Michael and his dad because both of them we... 1
- Michael's meeting with Sebastian Shultz had been a chance meeting. Where had it taken place and how? Michael met Sebastian for the first time in the game Wild West. After buying psycho drive games from the computer fair. Michael played the g... 1
- Why did the news of the 'miracle recovery' shock Michael? The news of the 'miracle recovery' shocked Michael as he met the same boy, Sebastian Shultz in the last two-three weeks who had been in coma... 1
- What were the special touches that Patol Babu gave to his role to make it more authentic? Patol Babu suggested to Barren Mullick if he had a newspaper open in his hand then it would be more natural and realistic. Then, he calculat... 1
- Why did Mr. Mullick turn down Patol Babu's request for a rehearsal? The scene had to be shot in sunlight and as the clouds were seen approaching, Mr. Mullick had to take the shot quickly. So he declined Patol... 1