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.
| 3701. |
Matter is ___ . |
|
Answer» Matter is |
|
| 3702. |
A vessel filled with mixture of oxygen and N2.At what ratio of partial pressures will the mass of gases be identical? |
| Answer» A vessel filled with mixture of oxygen and N2.At what ratio of partial pressures will the mass of gases be identical? | |
| 3703. |
In which of the below solution/s will the bulb glow? |
|
Answer» In which of the below solution/s will the bulb glow? |
|
| 3704. |
Question 4 (a)Generally, non-metals react with acids. (True/False ) |
|
Answer» Question 4 (a) Generally, non-metals react with acids. (True/False ) |
|
| 3705. |
In which of the following forms is oil trapped inside the earth? |
|
Answer» In which of the following forms is oil trapped inside the earth? |
|
| 3706. |
An open vessel at 27ºC contains 28 grams of H2. Its temperature increases upto 127ºC. What fraction of moles of H2 gas escapes out of vessel? |
| Answer» An open vessel at 27ºC contains 28 grams of H2. Its temperature increases upto 127ºC. What fraction of moles of H2 gas escapes out of vessel? | |
| 3707. |
Define polymer and fiber |
| Answer» Define polymer and fiber | |
| 3708. |
Meeta's mother complained that white deposits form on all her utensils used for cooking. Meeta knows that the deposits are of calcium carbonate that gets left behind when water in the utensils evaporates. She also knows that calcium carbonate reacts with hydrochloric acid. However, she realises that hydrochloric acid is not easily available and is too dangerous for her to use in the kitchen to remove the stains.Suggest to Meeta a method that uses the same principle as she thought of, but solves the two problems she has with hydrochloric acid. |
|
Answer» Meeta's mother complained that white deposits form on all her utensils used for cooking. Meeta knows that the deposits are of calcium carbonate that gets left behind when water in the utensils evaporates. She also knows that calcium carbonate reacts with hydrochloric acid. However, she realises that hydrochloric acid is not easily available and is too dangerous for her to use in the kitchen to remove the stains. Suggest to Meeta a method that uses the same principle as she thought of, but solves the two problems she has with hydrochloric acid. |
|
| 3709. |
How does a metal react with acid? |
|
Answer» How does a metal react with acid? |
|
| 3710. |
Which of the following is/are thermochemical equations? |
|
Answer» Which of the following is/are thermochemical equations? |
|
| 3711. |
Reactivity of metal increases with increase in temperature because: |
|
Answer» Reactivity of metal increases with increase in temperature because: |
|
| 3712. |
why good electrical conductor is also a good thermal conductor but good thermal conductor need not be good electrical conductor |
| Answer» why good electrical conductor is also a good thermal conductor but good thermal conductor need not be good electrical conductor | |
| 3713. |
Which non-metal is essential for our life and all living beings which we inhale during breathing? |
|
Answer» Which non-metal is essential for our life and all living beings which we inhale during breathing? |
|
| 3714. |
11. a volume of 10 ml of gaseous C4Hx exactly requires 55ml of O2 for complete combustion. The value of x is |
| Answer» 11. a volume of 10 ml of gaseous C4Hx exactly requires 55ml of O2 for complete combustion. The value of x is | |
| 3715. |
Is water an electrolyte or not? |
| Answer» Is water an electrolyte or not? | |
| 3716. |
Which of the following elements would yield a basic oxide? |
|
Answer» Which of the following elements would yield a basic oxide? |
|
| 3717. |
Question 35What steps would you suggest for the judicious use of fossil fuels? |
|
Answer» Question 35 What steps would you suggest for the judicious use of fossil fuels? |
|
| 3718. |
Write the stepwise separation technique to separate a mixture of iron fillings, sand and camphor? |
|
Answer» Write the stepwise separation technique to separate a mixture of iron fillings, sand and camphor? |
|
| 3719. |
In energy exchange concept first orbital electron having parallel spin can exchange their position with 2,3,4,5 orbital of d sub she'll .So is the 2,3,4 5,obital electron having same parallel spin exchange their position with first orbital? Explain it. |
| Answer» In energy exchange concept first orbital electron having parallel spin can exchange their position with 2,3,4,5 orbital of d sub she'll .So is the 2,3,4 5,obital electron having same parallel spin exchange their position with first orbital? Explain it. | |
| 3720. |
Write the chemical formula of the following compounds. (a) Lithium oxide (b) Calcium Hydroxide (c) Aluminium Sulphate |
|
Answer» Write the chemical formula of the following compounds. (a) Lithium oxide (b) Calcium Hydroxide |
|
| 3721. |
58. 22 g of solid co2 or dry ice is enclosed in a bottle of one litre properly closed if temperature of bottle is raised to 25^° c to sunlike all the Co2, the pressure in the bottle is A 13.23 b 12.23 c 11.23 d 14.23 a)11.04 cal/mol/k b)22.02 cal/mol/k c)15.24 cal/mol/k d)5.52 cal/mol/k |
| Answer» 58. 22 g of solid co2 or dry ice is enclosed in a bottle of one litre properly closed if temperature of bottle is raised to 25^° c to sunlike all the Co2, the pressure in the bottle is A 13.23 b 12.23 c 11.23 d 14.23 a)11.04 cal/mol/k b)22.02 cal/mol/k c)15.24 cal/mol/k d)5.52 cal/mol/k | |
| 3722. |
The pressure (gauge) at a point in water is 150 kPa. The velocity at that point is 10 m/sec and the point is 5 m above the datum. The total energy of the water per Newton weight of the water is (Take g=10 m/sec2)25 |
Answer» The pressure (gauge) at a point in water is 150 kPa. The velocity at that point is 10 m/sec and the point is 5 m above the datum. The total energy of the water per Newton weight of the water is (Take g=10 m/sec2)
|
|
| 3723. |
Sound of the frequency below 20 Hz is known as |
|
Answer» Sound of the frequency below 20 Hz is known as |
|
| 3724. |
Question 1 (g)Classify the following as chemical or physical changes: g. Making a fruit salad with raw fruits |
|
Answer» Question 1 (g) Classify the following as chemical or physical changes: g. Making a fruit salad with raw fruits |
|
| 3725. |
HA + OH– → H2O + A– + q1 kJH+ + OH– → H2O + q2 kJEnthalpy of ionisation of HA is |
|
Answer» HA + OH– → H2O + A– + q1 kJ H+ + OH– → H2O + q2 kJ Enthalpy of ionisation of HA is |
|
| 3726. |
Write the word equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced in the reaction is ignited with a burning matchstick? |
|
Answer» Write the word equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced in the reaction is ignited with a burning matchstick? |
|
| 3727. |
Why are rayon called regenerated fibers ? What is its properties? |
|
Answer» Why are rayon called regenerated fibers ? What is its properties? |
|
| 3728. |
Why do liqui expand more than solids on heating |
|
Answer» Why do liqui expand more than solids on heating |
|
| 3729. |
X is a gas popularly called as laughing gas. It is also used as an anesthesia. X is |
|
Answer» X is a gas popularly called as laughing gas. It is also used as an anesthesia. X is |
|
| 3730. |
1. The formula of the chloride of metal is MCl2.What will be the formula of its sulphate? 2. Give the significance of the formula CO2. |
|
Answer» 1. The formula of the chloride of metal is MCl2. What will be the formula of its sulphate? 2. Give the significance of the formula CO2. |
|
| 3731. |
Write down any three properties of cathode rays? |
|
Answer» Write down any three properties of cathode rays? |
|
| 3732. |
Is the combinig of Hydrogen and oxygen in a fixed proportion by weight to form water a chemical change? |
| Answer» Is the combinig of Hydrogen and oxygen in a fixed proportion by weight to form water a chemical change? | |
| 3733. |
What is meant by subatomic particles ? Give brief information of three subatomic particles with reference tomelectrical charge mass and location. |
| Answer» What is meant by subatomic particles ? Give brief information of three subatomic particles with reference tomelectrical charge mass and location. | |
| 3734. |
What are the different states in which water is found during the water cycle? |
|
Answer» What are the different states in which water is found during the water cycle? |
|
| 3735. |
A mixture in which one or more substances are uniformly dissolved in another substance |
|
Answer» A mixture in which one or more substances are uniformly dissolved in another substance |
|
| 3736. |
A suspension and a colloidal solution, both are heterogeneous mixtures. Identify the wrong statement(s) referring to both types of solutions. |
|
Answer» A suspension and a colloidal solution, both are heterogeneous mixtures. Identify the wrong statement(s) referring to both types of solutions. |
|
| 3737. |
Name the gas produced when aluminium foil reacts with : (a) dilute hydrochloric acid. (b) sodium hydroxide solution. |
|
Answer» Name the gas produced when aluminium foil reacts with : (a) dilute hydrochloric acid. (b) sodium hydroxide solution. |
|
| 3738. |
Can Mn2+ be oxidised by chlorine? |
| Answer» Can Mn2+ be oxidised by chlorine? | |
| 3739. |
Give one advantage of detergents over soaps. |
|
Answer» Give one advantage of detergents over soaps. |
|
| 3740. |
where do protons and neutrons go in a electric cell |
| Answer» where do protons and neutrons go in a electric cell | |
| 3741. |
What is the force between two small charged spheres having charges of 2×10^{-7}C and 3x10^{-7}C placed 30 cm apart in air |
| Answer» What is the force between two small charged spheres having charges of 2×10^{-7}C and 3x10^{-7}C placed 30 cm apart in air | |
| 3742. |
Question 28 Write True/False against the following statements and also correct the false statement. (a) A physical process in which a substance reacts with oxygen to give off heat is called combustion (b) Water is the best extinguisher for fires involving electrical equipment (c) Alcohol, CNG and LPG are inflammable substances. (d) Increased concentration of nitrogen in air is believed to cause global warming. (e) Greater the calorific value, better is the fuel (f) Middle zone is the hottest zone of a flame. (g) The substances which vapourise during burning, give the flame |
|
Answer» Question 28 Write True/False against the following statements and also correct the false statement. (a) A physical process in which a substance reacts with oxygen to give off heat is called combustion (b) Water is the best extinguisher for fires involving electrical equipment (c) Alcohol, CNG and LPG are inflammable substances. (d) Increased concentration of nitrogen in air is believed to cause global warming. (e) Greater the calorific value, better is the fuel (f) Middle zone is the hottest zone of a flame. (g) The substances which vapourise during burning, give the flame |
|
| 3743. |
Which among the following words can be used as a noun as well as a verb? |
|
Answer» Which among the following words can be used as a noun as well as a verb? |
|
| 3744. |
We know that mixtures can be separated by physical techniques.Does both homogenus and heterogenous mixtures can separated physically ? |
|
Answer» We know that mixtures can be separated by physical techniques. Does both homogenus and heterogenous mixtures can separated physically ? |
|
| 3745. |
Why does the fire go out if water is thrown on the burning wood? |
|
Answer» Why does the fire go out if water is thrown on the burning wood? |
|
| 3746. |
Which of the following gas is released by refrigerators and air conditioners? |
|
Answer» Which of the following gas is released by refrigerators and air conditioners? |
|
| 3747. |
difference between mixtures and compounds |
| Answer» difference between mixtures and compounds | |
| 3748. |
Name three useful products of coal. |
|
Answer» Name three useful products of coal. |
|
| 3749. |
Melting of ice cream is a:- |
|
Answer» Melting of ice cream is a:- |
|
| 3750. |
Discuss corrosion concerning copper and silver vessels. |
|
Answer» Discuss corrosion concerning copper and silver vessels. |
|