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.
| 6001. |
The maximum oxidation state exhibited by actinide ions is |
|
Answer» The maximum oxidation state exhibited by actinide ions is |
|
| 6002. |
Which of these is the correct group reagent for Mn2+,Co2+,Zn2+& Ni2+ group cations? |
|
Answer» Which of these is the correct group reagent for Mn2+,Co2+,Zn2+& Ni2+ group cations? |
|
| 6003. |
Which type of salt solution causes the following colour change in the indicators? |
|
Answer» Which type of salt solution causes the following colour change in the indicators? |
|
| 6004. |
What is the correct sequence1. Newland's law of octaves2. Law of triads.3. Modern periodic table.4. Mendeleev's periodic table. |
|
Answer» What is the correct sequence 1. Newland's law of octaves 2. Law of triads. 3. Modern periodic table. 4. Mendeleev's periodic table. |
|
| 6005. |
43. Energy required to ionise 1 mole of gaseous He+ ion present in its ground state |
| Answer» 43. Energy required to ionise 1 mole of gaseous He+ ion present in its ground state | |
| 6006. |
One of the following is a solid foam. This one is: (a) butter (b) bread (c) shaving cream (d) ruby |
|
Answer» One of the following is a solid foam. This one is: (a) butter (b) bread (c) shaving cream (d) ruby |
|
| 6007. |
Write the composition of air. |
|
Answer» Write the composition of air. |
|
| 6008. |
A hydrocarbon contains 86% carbon, 488ml of the hydrocarbon weight 1.68 g at STP. Then the hydrocarbon is an |
|
Answer» A hydrocarbon contains 86% carbon, 488ml of the hydrocarbon weight 1.68 g at STP. Then the hydrocarbon is an |
|
| 6009. |
A certain alkaloid has 70.8%C,6.2%H and 4.1% of N and rest O. The empirical formula is |
|
Answer» A certain alkaloid has 70.8%C,6.2%H and 4.1% of N and rest O. The empirical formula is |
|
| 6010. |
Calculate the mass of glucose needed to prepare 250g of 5 percent solution by mass. |
|
Answer» Calculate the mass of glucose needed to prepare 250g of 5 percent solution by mass. |
|
| 6011. |
34 g of H2O decomposes to _______ g of hydrogen and ____ g of oxygen. |
|
Answer» 34 g of H2O decomposes to _______ g of hydrogen and ____ g of oxygen. |
|
| 6012. |
How? Characterstics of anode rays depend on the nature of gas in discharge tube |
| Answer» How? Characterstics of anode rays depend on the nature of gas in discharge tube | |
| 6013. |
43. why is carbon placed in 14th group and 2nd period in periodic table? |
| Answer» 43. why is carbon placed in 14th group and 2nd period in periodic table? | |
| 6014. |
Calculate the maximum possible silver ion concentration in a saturated solution of 0.1M H2S from which precipitation will not take place Ksp(Ag2S)= 1.6*10^-49K1(H2S)= 1*10^-7K2(H2S)= 1*10^-14 |
|
Answer» Calculate the maximum possible silver ion concentration in a saturated solution of 0.1M H2S from which precipitation will not take place Ksp(Ag2S)= 1.6*10^-49 K1(H2S)= 1*10^-7 K2(H2S)= 1*10^-14 |
|
| 6015. |
In the structure of sucrose from where does the OH functional group comes on 5th Carbon where as in (b-D-(-)-fructofuranose) only hydrogen (H)is present at 5th carbon |
|
Answer» In the structure of sucrose from where does the OH functional group comes on 5th Carbon where as in (b-D-(-)-fructofuranose) only hydrogen (H)is present at 5th carbon |
|
| 6016. |
43. Balance the following equation: Zn + (H+) ---> (Zn+2) + H2 (Zinc reacts with hydrogen ion to give Zinc ion and Hydrogen gas.) |
| Answer» 43. Balance the following equation: Zn + (H+) ---> (Zn+2) + H2 (Zinc reacts with hydrogen ion to give Zinc ion and Hydrogen gas.) | |
| 6017. |
what is Dalton's law of partial pressure? |
| Answer» what is Dalton's law of partial pressure? | |
| 6018. |
In a Rutherford scattering experiment when a projectile of charge z1 and mass M1 approaches a target nucleus of charge z2 and mass M2, the distance of closest approach is r. The energy of the projectile is 1. Directly proportional of mass M12. Directly proportional of M1M23. Directly proportional of z1z24. Inversely proportional to z1 |
|
Answer» In a Rutherford scattering experiment when a projectile of charge z1 and mass M1 approaches a target nucleus of charge z2 and mass M2, the distance of closest approach is r. The energy of the projectile is 1. Directly proportional of mass M1 2. Directly proportional of M1M2 3. Directly proportional of z1z2 4. Inversely proportional to z1 |
|
| 6019. |
Sulphuric acid was initially called ___. |
|
Answer» Sulphuric acid was initially called |
|
| 6020. |
44. What is the molality of aqueous solution of glucose having its 0.01 mole fraction |
| Answer» 44. What is the molality of aqueous solution of glucose having its 0.01 mole fraction | |
| 6021. |
If 2 mL acetone is dissolved in 20 mL of water then, calculate the concentration (v/v %) of solution. |
|
Answer» If 2 mL acetone is dissolved in 20 mL of water then, calculate the concentration (v/v %) of solution. |
|
| 6022. |
How do ions get plus or minus charges ? |
|
Answer» How do ions get plus or minus charges ? |
|
| 6023. |
Applying Bohr's model when electron in H atom comes from n=4 to n=2 ,calculate the wavelength of the line. In this process, write whether energy is released or absorbed. Also wite the range of radiation. |
| Answer» Applying Bohr's model when electron in H atom comes from n=4 to n=2 ,calculate the wavelength of the line. In this process, write whether energy is released or absorbed. Also wite the range of radiation. | |
| 6024. |
If we rub a plastic comb on dry hair for some time and bring this comb near small pieces of paper, it attracts small pieces of paper. Which of the following can be related to this? |
|
Answer» If we rub a plastic comb on dry hair for some time and bring this comb near small pieces of paper, it attracts small pieces of paper. Which of the following can be related to this? |
|
| 6025. |
The removal of dust particles from rice is done by ____. |
|
Answer» The removal of dust particles from rice is done by ____. |
|
| 6026. |
(a) Name an element which does not contain a neutron. (b) If an atom contains one electron and one proton, will it carry any charge or not? |
|
Answer» (a) Name an element which does not contain a neutron. (b) If an atom contains one electron and one proton, will it carry any charge or not? |
|
| 6027. |
Question 12 A student heats a beaker containing ice and water. He measures the temperature of of the content of the beaker as a function of time. Which of the following (Fig. 1.1) would correctly represent the result? Justify your choice. |
|
Answer» Question 12 A student heats a beaker containing ice and water. He measures the temperature of of the content of the beaker as a function of time. Which of the following (Fig. 1.1) would correctly represent the result? Justify your choice. 
|
|
| 6028. |
In the ground state, an element has 13 electrons in its M shell, the element isManganese Cobalt NickelIron |
|
Answer» In the ground state, an element has 13 electrons in its M shell, the element is Manganese Cobalt Nickel Iron |
|
| 6029. |
The strength of an acid depends on its tendency to ___ protons. |
|
Answer» The strength of an acid depends on its tendency to |
|
| 6030. |
Correct the following statements: (a) A molecular formula represents an element. (b) Molecular formula of water (H2O) represents 9 parts by mass of water. (c) A balanced equation obeys the law of conservation of mass and so does an unbalanced equation. (d) A molecule of an element is always monoatomic. (e) CO and Co both represent cobalt. |
|
Answer» Correct the following statements: (a) A molecular formula represents an element. (b) Molecular formula of water (H2O) represents 9 parts by mass of water. (c) A balanced equation obeys the law of conservation of mass and so does an unbalanced equation. (d) A molecule of an element is always monoatomic. (e) CO and Co both represent cobalt. |
|
| 6031. |
WHAT IS VOLUMETRIC METHOD?? EXPLAIN WITH THE HELP OF OLEIC ACID. |
| Answer» WHAT IS VOLUMETRIC METHOD?? EXPLAIN WITH THE HELP OF OLEIC ACID. | |
| 6032. |
Which of the following is true for carbon monoxide? |
|
Answer» Which of the following is true for carbon monoxide? |
|
| 6033. |
66 How does hyperconjugation involves delocalisation of both sigma and pi electrons? |
| Answer» 66 How does hyperconjugation involves delocalisation of both sigma and pi electrons? | |
| 6034. |
Why do solids have fixed shape and volume |
|
Answer» Why do solids have fixed shape and volume |
|
| 6035. |
Which of the following metals on reaction with water releases hydrogen gas? |
|
Answer» Which of the following metals on reaction with water releases hydrogen gas? |
|
| 6036. |
Which is the only metal that is liquid at standard conditions of temperature and pressure? |
|
Answer» Which is the only metal that is liquid at standard conditions of temperature and pressure? |
|
| 6037. |
What is the common name of potassium hydroxide:- |
|
Answer» What is the common name of potassium hydroxide:- |
|
| 6038. |
The reaction in which a chlorine atom replaces a hydrogen atom in a molecule of methane is called ______________. |
|
Answer» The reaction in which a chlorine atom replaces a hydrogen atom in a molecule of methane is called ______________. |
|
| 6039. |
The compound which has only primary and tertiary carbons is? |
|
Answer» The compound which has only primary and tertiary carbons is? |
|
| 6040. |
A gas at 300 K has some volume. At what temperature, will it become half this volume if the pressure remain constant? |
|
Answer» A gas at 300 K has some volume. At what temperature, will it become half this volume if the pressure remain constant? |
|
| 6041. |
Atomic mass of an element is equal to the sum of? |
|
Answer» Atomic mass of an element is equal to the sum of? |
|
| 6042. |
Question 24Verify by calculating that(a) 5 moles of CO2 and 5 moles of H2O do not have the same mass.(b) 240 g calcium and 240 g magnesium elements have a mole ratio of 3:5. |
|
Answer» Question 24 |
|
| 6043. |
is there any change which is neither physical nor chemical? |
| Answer» is there any change which is neither physical nor chemical? | |
| 6044. |
A current of 1.05A was passed through an electrolyte containing AgNO3 solution with inert cathode was 1.50g. How long did the current flow? (atomic mass of Ag=180u, 1F=96500C) |
| Answer» A current of 1.05A was passed through an electrolyte containing AgNO3 solution with inert cathode was 1.50g. How long did the current flow? (atomic mass of Ag=180u, 1F=96500C) | |
| 6045. |
Addition of Nitric acid to water is a physical change where as addition of calcium oxide to water is considered as chemical change |
|
Answer» Addition of Nitric acid to water is a physical change where as addition of calcium oxide to water is considered as chemical change |
|
| 6046. |
8 20 ml of 0.1 N Bacl2 and 20 ml of 0.1M Al2(so4)3 calculate the mass of Baso4 formed? |
| Answer» 8 20 ml of 0.1 N Bacl2 and 20 ml of 0.1M Al2(so4)3 calculate the mass of Baso4 formed? | |
| 6047. |
45. How does NO has odd number of electron in central atom |
| Answer» 45. How does NO has odd number of electron in central atom | |
| 6048. |
140. It is now known that protons and neutrons are themselves build out of elementary unit called quark . the up quark (u) has a charge +2e/3 and down quark (d) has charge -e/3. the composition of proton and neutron can be. (1) uud,udd (2) udd,uud (3) ddd,uuu (4) uuu,ddd |
| Answer» 140. It is now known that protons and neutrons are themselves build out of elementary unit called quark . the up quark (u) has a charge +2e/3 and down quark (d) has charge -e/3. the composition of proton and neutron can be. (1) uud,udd (2) udd,uud (3) ddd,uuu (4) uuu,ddd | |
| 6049. |
What are the molecular formulae of the following compounds ?Hydrochloric acid, sulphuric acid, sodium chloride , glucose, methane. |
|
Answer» What are the molecular formulae of the following compounds ? Hydrochloric acid, sulphuric acid, sodium chloride , glucose, methane. |
|
| 6050. |
Carbon has a valency of four. It is capable of forming single bonds with four other carbon atoms or atoms of some other monovalent element, etc. What is this property of carbon known as? |
|
Answer» Carbon has a valency of four. It is capable of forming single bonds with four other carbon atoms or atoms of some other monovalent element, etc. What is this property of carbon known as? |
|