InterviewSolution
Saved Bookmarks
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.
| 4251. |
Question 3 (d)Metals react with acids to produce ___ gas. |
|
Answer» Question 3 (d) Metals react with acids to produce |
|
| 4252. |
How value of n in freundlich isotherm depend on adsorbate and adsorbent ? |
| Answer» How value of n in freundlich isotherm depend on adsorbate and adsorbent ? | |
| 4253. |
Correct the following incorrect statements:1. The first shell in Bohr's Atomic model is represented by the letter "A".2. The maximum number of electrons that can go in the shell "N" is 48.3. The mass number of an atom equals the sum of the number of protons and electrons present in the nucleus of an atom. |
|
Answer» Correct the following incorrect statements: 1. The first shell in Bohr's Atomic model is represented by the letter "A". 2. The maximum number of electrons that can go in the shell "N" is 48. 3. The mass number of an atom equals the sum of the number of protons and electrons present in the nucleus of an atom. |
|
| 4254. |
Wool can be obtained from: |
|
Answer» Wool can be obtained from: |
|
| 4255. |
Question 7Define valency by taking examples of silicon and oxygen. |
|
Answer» Question 7 Define valency by taking examples of silicon and oxygen. |
|
| 4256. |
Air in an open container is heated from 17°C to 117°C. The fraction of the original amount of air escaped out from the container isएक खुले पात्र में वायु को 17°C से 117°C तक गर्म किया जाता है। पात्र से वायु की मूल मात्रा का निष्कासित होने वाला प्रभाज है |
|
Answer» Air in an open container is heated from 17°C to 117°C. The fraction of the original amount of air escaped out from the container is |
|
| 4257. |
What is lithium? |
|
Answer» What is lithium? |
|
| 4258. |
Identify the popular water purification technique that is used for drinking purposes in domestic cities. |
|
Answer» Identify the popular water purification technique that is used for drinking purposes in domestic cities. |
|
| 4259. |
in rutherford's alpha scattering experiment what will bbe the correct angle of scattering for impact parameter b=0 |
| Answer» in rutherford's alpha scattering experiment what will bbe the correct angle of scattering for impact parameter b=0 | |
| 4260. |
How many parts of hydrochloric acid is present in a mixture of aqua regia?3 |
Answer» How many parts of hydrochloric acid is present in a mixture of aqua regia?
|
|
| 4261. |
Ravi placed a zinc plate in a glass container having a blue coloured solution of a metal sulphate MSO4 for a considerable time. He found that the blue colour of solution got lighter and lighter, and finally the solution became colourless. A red-brown deposit was also formed on the zinc plate.(a) Which metal, zinc or M, occurs lower in the reactivity series?(b) Name the substance which forms colourless solution. |
|
Answer» Ravi placed a zinc plate in a glass container having a blue coloured solution of a metal sulphate MSO4 for a considerable time. He found that the blue colour of solution got lighter and lighter, and finally the solution became colourless. A red-brown deposit was also formed on the zinc plate. (a) Which metal, zinc or M, occurs lower in the reactivity series? (b) Name the substance which forms colourless solution. |
|
| 4262. |
Why rust appears to be brown in colour? |
|
Answer» Why rust appears to be brown in colour? |
|
| 4263. |
Which non-metal is used as a fuel ? |
|
Answer» Which non-metal is used as a fuel ? |
|
| 4264. |
Characteristics of bituminous |
|
Answer» Characteristics of bituminous |
|
| 4265. |
Metal are___ they produce sound on striking. |
|
Answer» Metal are |
|
| 4266. |
Which synthetic fibre contains the organic group similar to those which give fruits their sweet smell ? |
|
Answer» Which synthetic fibre contains the organic group similar to those which give fruits their sweet smell ? |
|
| 4267. |
Difference between formula unit and molecule |
| Answer» Difference between formula unit and molecule | |
| 4268. |
Question 4 (a) Fossil fuels are ___, ___ and ___. |
|
Answer» Question 4 (a) Fossil fuels are |
|
| 4269. |
what is compressibility and bemensional formula |
| Answer» what is compressibility and bemensional formula | |
| 4270. |
Find the rate law that corresponds to the data shown for the following reaction?Experiment[A0]=M[B0]=MInitial rate10.0120.0350.1020.0240.0700.8030.0240.0350.1040.0120.0700.080 |
||||||||||||||||||||
|
Answer» Find the rate law that corresponds to the data shown for the following reaction?
|
|||||||||||||||||||||
| 4271. |
What do you understand by an explosion? |
|
Answer» What do you understand by an explosion? |
|
| 4272. |
Two soap bubble coalesce to form one bubble . If decrease in volume and surface area are V and S respectively . Atmospheric pressure is P0 and surface tension is T, then correct relation is3P0V+TS=0P0V+TS=03P0V+4TS=0None of these |
|
Answer» Two soap bubble coalesce to form one bubble . If decrease in volume and surface area are V and S respectively . Atmospheric pressure is P0 and surface tension is T, then correct relation is 3P0V+TS=0 P0V+TS=0 3P0V+4TS=0 None of these |
|
| 4273. |
Fire extinguisher- |
|
Answer» Fire extinguisher- |
|
| 4274. |
Change the verbs to nouns and begin points with them. |
| Answer» Change the verbs to nouns and begin points with them. | |
| 4275. |
You may have seen that when a person accidentally catches fire, people put a blanket around him. Identify the reason for this. |
|
Answer» You may have seen that when a person accidentally catches fire, people put a blanket around him. Identify the reason for this. |
|
| 4276. |
why alpha particle is also known as doubly charged particle ? yet it has no double charge |
| Answer» why alpha particle is also known as doubly charged particle ? yet it has no double charge | |
| 4277. |
What are metals and nonmetals and give their example? |
| Answer» What are metals and nonmetals and give their example? | |
| 4278. |
If addition of non volatile solute in water decreases it's vapour pressure by 20%What would be its molality |
|
Answer» If addition of non volatile solute in water decreases it's vapour pressure by 20% What would be its molality |
|
| 4279. |
Define noble gases |
|
Answer» Define noble gases |
|
| 4280. |
A:calorific value of CH4 is highest among all alkanes.R:deltaH of combustion is directly proportional to moles of oxygen,required for combustion of one mole of hydrocarbon. |
|
Answer» A:calorific value of CH4 is highest among all alkanes. R:deltaH of combustion is directly proportional to moles of oxygen,required for combustion of one mole of hydrocarbon. |
|
| 4281. |
What could be done to keep rivers clean? Discuss. |
|
Answer» What could be done to keep rivers clean? Discuss. |
|
| 4282. |
Why does water expands on freezing? |
|
Answer» Why does water expands on freezing? |
|
| 4283. |
what is dilute acid? |
|
Answer» what is dilute acid? |
|
| 4284. |
Calculate the mass of sodium sulphate required to prepare a 20% solution in 100 g of water? |
|
Answer» Calculate the mass of sodium sulphate required to prepare a 20% solution in 100 g of water? |
|
| 4285. |
State the importance of water cycle in nature. |
|
Answer» State the importance of water cycle in nature. |
|
| 4286. |
which gas have least temperature for liquefaction (A) Ammonia (B) helium ( C) hydrogen (D) Nitrogen |
| Answer» which gas have least temperature for liquefaction (A) Ammonia (B) helium ( C) hydrogen (D) Nitrogen | |
| 4287. |
In naturally occuring corundum the oxide ions forms hexagonal close packing and aluminum ions occupy two thirds of octahedral voids what is the formula of corrudum |
|
Answer» In naturally occuring corundum the oxide ions forms hexagonal close packing and aluminum ions occupy two thirds of octahedral voids what is the formula of corrudum |
|
| 4288. |
We hear the sound of bells ringing at the temple. Which property of metal is responsible for this sound? |
|
Answer» We hear the sound of bells ringing at the temple. Which property of metal is responsible for this sound? |
|
| 4289. |
Explain the following types of chemical reactions giving two examples for each of them.(a) Combination reaction(b) Decomposition reaction |
|
Answer» Explain the following types of chemical reactions giving two examples for each of them. (a) Combination reaction (b) Decomposition reaction |
|
| 4290. |
Why aluminum is called a self protecting metal?? |
|
Answer» Why aluminum is called a self protecting metal?? |
|
| 4291. |
How would you show that setting of curd is a chemical change? |
|
Answer» How would you show that setting of curd is a chemical change? |
|
| 4292. |
Two circular loops of equal radii are placed coaxially at some separation. The first one is cut and a battery is inserted in between to drive a current in it. The current changes slightlyj due to variation in resis†an ce with temperature.will the coils attract or repel each other |
| Answer» Two circular loops of equal radii are placed coaxially at some separation. The first one is cut and a battery is inserted in between to drive a current in it. The current changes slightlyj due to variation in resis†an ce with temperature.will the coils attract or repel each other | |
| 4293. |
Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.Write down word equations for this reactions taking place in this process. |
|
Answer» Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. Write down word equations for this reactions taking place in this process. |
|
| 4294. |
Identify the chemical process depicted in the pictures given below. |
|
Answer» Identify the chemical process depicted in the pictures given below. |
|
| 4295. |
Pressure ka effect only Gas par hi kyun hota h Liquid par kyun nhi? Matlab Gas par Pressure dalke vo Liquid me convert ho jati h but I- Tutor par kha tha ki liquid par gas ka koi effect nhi hota but kyon nhi hota vo bhi to sold me convert honi chahiye? |
| Answer» Pressure ka effect only Gas par hi kyun hota h Liquid par kyun nhi? Matlab Gas par Pressure dalke vo Liquid me convert ho jati h but I- Tutor par kha tha ki liquid par gas ka koi effect nhi hota but kyon nhi hota vo bhi to sold me convert honi chahiye? | |
| 4296. |
Deduce the molecular formulae of the compound obtained from the following pairs of elements by the cross multiplication method.A. C (Valency 4) & Cl (Valency 1)B. N (Valency 3) & H (Valency 1)C. C (Valency 4) & O (Valency 2)D. Ca (Valency 2) & O (Valency 2) |
|
Answer» Deduce the molecular formulae of the compound obtained from the following pairs of elements by the cross multiplication method. A. C (Valency 4) & Cl (Valency 1) B. N (Valency 3) & H (Valency 1) C. C (Valency 4) & O (Valency 2) D. Ca (Valency 2) & O (Valency 2) |
|
| 4297. |
How can you convert a gas into a liquid? |
|
Answer» How can you convert a gas into a liquid? |
|
| 4298. |
One litre of CO2 is passed through red hot coke. The volume becomes 1.4 litres at same temperature and pressure. The composition of products is:a. 0.8L CO & 0.6L of CO2b. 0.6L CO & 0.8L of CO2c. 0.7L CO & 0.7L of CO2d. 1L CO & 0.4L of CO2 |
|
Answer» One litre of CO2 is passed through red hot coke. The volume becomes 1.4 litres at same temperature and pressure. The composition of products is: a. 0.8L CO & 0.6L of CO2 b. 0.6L CO & 0.8L of CO2 c. 0.7L CO & 0.7L of CO2 d. 1L CO & 0.4L of CO2 |
|
| 4299. |
Question 30While driving what are the tips we must follow to save petrol/ diesel/natural gas? |
|
Answer» Question 30 While driving what are the tips we must follow to save petrol/ diesel/natural gas? |
|
| 4300. |
why does stannous chloride has a higher melting point than stannic chloride |
| Answer» why does stannous chloride has a higher melting point than stannic chloride | |