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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 3251. |
In a chemical change ___ |
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Answer» In a chemical change |
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| 3252. |
6useful uses of acids |
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Answer» 6useful uses of acids |
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| 3253. |
What do you mean by variable valency ? |
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Answer» What do you mean by variable valency ? |
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| 3254. |
Ram has mixed oil,sand,water,salt, iron filings.how will he separate it |
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Answer» Ram has mixed oil,sand,water,salt, iron filings.how will he separate it |
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| 3255. |
.what are two neutralization reactions related to daily life situations. . What is the use of litmus test? |
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Answer» .what are two neutralization reactions related to daily life situations. . What is the use of litmus test? |
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| 3256. |
Fill in the blanks- Carbon burns in air to form ___________ which dissolves in rain to produce _________ acid. |
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Answer» Fill in the blanks- Carbon burns in air to form ___________ which dissolves in rain to produce _________ acid. |
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| 3257. |
Calculate the Formula unit mass of CaCl2. |
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Answer» Calculate the Formula unit mass of CaCl2. |
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| 3258. |
Which particles have approximately the same size and mass? |
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Answer» Which particles have approximately the same size and mass? |
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| 3259. |
Which word in the following sentence is a noun acting like an adjective? The rat crept out through one of the sewer manholes which lay open. |
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Answer» Which word in the following sentence is a noun acting like an adjective? The rat crept out through one of the sewer manholes which lay open. |
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| 3260. |
Waste water released from toilets is termed as foul waste and is full of germs and ___ |
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Answer» Waste water released from toilets is termed as foul waste and is full of germs and |
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| 3261. |
Water present in the air is also known as: |
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Answer» Water present in the air is also known as: |
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| 3262. |
How and why sugar can flow like water |
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Answer» How and why sugar can flow like water |
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| 3263. |
a) Why has it been suggested that we should plant eucalyptus trees all along sewage ponds? [2 MARKS] b) Write short notes on septic tank and chemical toilets. [3 MARKS] |
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Answer» a) Why has it been suggested that we should plant eucalyptus trees all along sewage ponds? [2 MARKS] |
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| 3264. |
What will happen if I mix a base and a neutral solution |
| Answer» What will happen if I mix a base and a neutral solution | |
| 3265. |
Gases are slightly___________ |
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Answer» Gases are slightly___________ |
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| 3266. |
What is sodium carbonate and its chemical formula |
| Answer» What is sodium carbonate and its chemical formula | |
| 3267. |
Question 21 Three statements are provided here which define the terms, i.e. sludge, sewage and wastewater. Pick out the correct definition for each of these terms. (a) The settled solids that are removed in wastewater treatment with a scraper. (b) Water from kitchen used for washing dishes. (c) Wastewater released from homes, industries, hospitals and other public buildings. |
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Answer» Question 21 Three statements are provided here which define the terms, i.e. sludge, sewage and wastewater. Pick out the correct definition for each of these terms. |
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| 3268. |
How is global warming caused? |
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Answer» How is global warming caused? |
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| 3269. |
Change the sentence to direct speech. The instructor warned the people to not stand too close to the lion’s cage. |
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Answer» Change the sentence to direct speech. The instructor warned the people to not stand too close to the lion’s cage. |
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| 3270. |
What is sericin? How is soften? |
| Answer» What is sericin? How is soften? | |
| 3271. |
The insects, butterflies, honeybees and birds help flowering plants in ___. |
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Answer» The insects, butterflies, honeybees and birds help flowering plants in |
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| 3272. |
Consider the following statements Which of the following statements is/ are correct |
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Answer» Consider the following statements Which of the following statements is/ are correct |
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| 3273. |
Fuel A and Fuel B are mixed. Ignition temperature of A is lower then room temperature and that of B is about 50∘C. What will burn? |
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Answer» Fuel A and Fuel B are mixed. Ignition temperature of A is lower then room temperature and that of B is about 50∘C. What will burn? |
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| 3274. |
The term “water - pollution” can be defined in several ways. Which of the following statements does not give the correct definition? |
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Answer» The term “water - pollution” can be defined in several ways. Which of the following statements does not give the correct definition? |
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| 3275. |
What is high melting point and average melting point of a wire? A fuse wire has which type of melting point? |
Answer»
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| 3276. |
Define chromatography. Explain the underlying principle involved . |
| Answer» Define chromatography. Explain the underlying principle involved . | |
| 3277. |
Which of the following option shows the correct percentage composition of the component of air? |
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Answer» Which of the following option shows the correct percentage composition of the component of air? |
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| 3278. |
A change can be defined as: |
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Answer» A change can be defined as: |
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| 3279. |
Tea placed in a closed vessel is an example of |
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Answer» Tea placed in a closed vessel is an example of |
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| 3280. |
Which of these chemicals are used to clean water in a water treatment plant? |
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Answer» Which of these chemicals are used to clean water in a water treatment plant? |
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| 3281. |
Even though There are 118 elements on the periodic table, why is uranium the heaviest |
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Answer» Even though There are 118 elements on the periodic table, why is uranium the heaviest |
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| 3282. |
What is the name of the force that acts between the particles of matter? |
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Answer» What is the name of the force that acts between the particles of matter? |
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| 3283. |
The reaction, Zn + 2HCl → ZnCl2 + H2 is an example of: |
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Answer» The reaction, Zn + 2HCl → ZnCl2 + H2 is an example of: |
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| 3284. |
The action of moisture or corrosion turns copper into which colour? |
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Answer» The action of moisture or corrosion turns copper into which colour? |
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| 3285. |
Which of the following is the major source of pure water for us? |
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Answer» Which of the following is the major source of pure water for us? |
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| 3286. |
Question 22 A mixture (x) in water contains suspended solids, organic impurities, inorganic impurities (a), nutrients (b), disease causing bacteria and other microbes. Give names for (x), (a) and (b)? |
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Answer» Question 22 A mixture (x) in water contains suspended solids, organic impurities, inorganic impurities (a), nutrients (b), disease causing bacteria and other microbes. Give names for (x), (a) and (b)? |
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| 3287. |
When CO2 is passed through lime water, it turns milky. Identify the cause of the milkiness. |
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Answer» When CO2 is passed through lime water, it turns milky. Identify the cause of the milkiness. |
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| 3288. |
Which of the following option(s) are correct about the properties of oxygen? |
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Answer» Which of the following option(s) are correct about the properties of oxygen? |
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| 3289. |
A boy adds hot water in an aquarium to make the water warm. What could have happened to the fish in the aquarium, after a while? |
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Answer» A boy adds hot water in an aquarium to make the water warm. What could have happened to the fish in the aquarium, after a while? |
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| 3290. |
Diffusion that occurs through carrier proteins is |
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Answer» Diffusion that occurs through carrier proteins is |
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| 3291. |
Which of the following is false about indicators? |
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Answer» Which of the following is false about indicators? |
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| 3292. |
After the soil is born how does it die? |
| Answer» After the soil is born how does it die? | |
| 3293. |
1. Name the substance that undergoes chemical change. 2. Toilet cleaners use which of the following property of acids? 3. Ammonia is found in many household products, such as window cleaners. It turns red litmus blue. What is its nature? [3 MARKS] |
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Answer» 1. Name the substance that undergoes chemical change. 2. Toilet cleaners use which of the following property of acids? 3. Ammonia is found in many household products, such as window cleaners. It turns red litmus blue. What is its nature? [3 MARKS] |
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| 3294. |
Write the difference between : a) burning of magnesium ribbon and burning of candle. b) Rusting of iron and burning. |
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Answer» Write the difference between : a) burning of magnesium ribbon and burning of candle. b) Rusting of iron and burning. |
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| 3295. |
Which of the following is not an element? |
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Answer» Which of the following is not an element? |
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| 3296. |
What is the mass of sulphur that would react with 5 g of iron to form ferrous sulphide (FeS)?2.8 |
Answer» What is the mass of sulphur that would react with 5 g of iron to form ferrous sulphide (FeS)?
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| 3297. |
The process of washing sheared fleece is called |
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Answer» The process of washing sheared fleece is called |
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| 3298. |
A certain current liberated 0.504 gm of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution |
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Answer» A certain current liberated 0.504 gm of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution
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| 3299. |
The total time taken to percolate 500 ml of water is 50 min. What will be the percolation rate of the soil ? |
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Answer» The total time taken to percolate 500 ml of water is 50 min. What will be the percolation rate of the soil ? |
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| 3300. |
Which of the following is not a property of bases? |
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Answer» Which of the following is not a property of bases? |
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