10223 + Interview Questions in Chemistry Page 63 InterviewSolution

3101.	Question 6.1 Balance the following chemical equation: HNO3+Ca(OH)2→Ca(NO3)2+H2O
Answer» Question 6.1 Balance the following chemical equation: ${HNO}_{3} + {Ca(OH)}_{2} \to {Ca(NO}_{3})_{2} + H_{2} O$

Discussion

3102.	What were the conclusions made by Rutherford as a result of alpha particle scattering experiment?
Answer» What were the conclusions made by Rutherford as a result of alpha particle scattering experiment?

Discussion

3103.	What is/are the product(s) formed on the decomposition of metal bicarbonates?
Answer» What is/are the product(s) formed on the decomposition of metal bicarbonates?

Discussion

3104.	Which forces hold together neutrons and protons in the nucleus?
Answer» Which forces hold together neutrons and protons in the nucleus?

Discussion

3105.	The sub-atomic particle responsible only for the physical properties is: [1 MARK]
Answer» The sub-atomic particle responsible only for the physical properties is: [1 MARK]

Discussion

3106.	What type of mixtures are separated by the technique of crystallisation?
Answer» What type of mixtures are separated by the technique of crystallisation?

Discussion

3107.	What is the wieght of availabe oxygen from a solution of hydrogen peroxide, if 20 ml of this solution needs 25ml of0.05N of KMnO4 for complete oxidation
Answer» What is the wieght of availabe oxygen from a solution of hydrogen peroxide, if 20 ml of this solution needs 25ml of0.05N of KMnO4 for complete oxidation

Discussion

3108.	An element A atomic number 7 mass number 14 B electronic configuration 2, 8, 8 C electrons 13, neutrons 14 D Protons 18 neutrons 22 E electronic configuration 2, 8, 8, 1 State (i) valency of each element (ii) which one is a metal (iii) which is a non-metal (iv) which is an inert gas.
Answer» An element A atomic number 7 mass number 14 B electronic configuration 2, 8, 8 C electrons 13, neutrons 14 D Protons 18 neutrons 22 E electronic configuration 2, 8, 8, 1 State (i) valency of each element (ii) which one is a metal (iii) which is a non-metal (iv) which is an inert gas.

3108.

An element A atomic number 7 mass number 14 B electronic configuration 2, 8, 8 C electrons 13, neutrons 14 D Protons 18 neutrons 22 E electronic configuration 2, 8, 8, 1 State (i) valency of each element (ii) which one is a metal (iii) which is a non-metal (iv) which is an inert gas.

Answer»

An element A atomic number 7 mass number 14

B electronic configuration 2, 8, 8

C electrons 13, neutrons 14

D Protons 18 neutrons 22

E electronic configuration 2, 8, 8, 1

State (i) valency of each element (ii) which one is a metal (iii) which is a non-metal (iv) which is an inert gas.

Discussion

3109.	Compare the volumes of two gases containing same no. Of molecules filled in 5 litre and 10 litre cylinder respectively.
Answer» Compare the volumes of two gases containing same no. Of molecules filled in 5 litre and 10 litre cylinder respectively.

Discussion

3110.	The correct order of unpaired electrons present in 'd' orbitals for elements Fe,Ti,Cr and Co is:
Answer» The correct order of unpaired electrons present in 'd' orbitals for elements $F e, T i, C r$ and $C o$ is:

Discussion

3111.	Naphthalene balls disappear with time without leaving any solid. Give reason
Answer» Naphthalene balls disappear with time without leaving any solid. Give reason

Discussion

3112.	Solubility product of Agcl. Is 4.0 x 10 power-10 at 298 K .The solubility of Agcl in 0.04 M CaCl2 will be
Answer» Solubility product of Agcl. Is 4.0 x 10 power-10 at 298 K .The solubility of Agcl in 0.04 M CaCl2 will be

Discussion

3113.	Calculate the number of oxygen atoms in 0.10 mole of Na2 Co3 . 10H2O
Answer» Calculate the number of oxygen atoms in 0.10 mole of Na2 Co3 . 10H2O

Discussion

3114.	Which of the following ore contains both magnesium and calcium
Answer» Which of the following ore contains both magnesium and calcium

Discussion

3115.	give me all the formula's of trignometry?
Answer» give me all the formula's of trignometry?

Discussion

3116.	The organic compounds having the same molecular formula but different structures are known as ..........
Answer» The organic compounds having the same molecular formula but different structures are known as ..........

Discussion

3117.	The materials that were used for making seals
Answer» The materials that were used for making seals

Discussion

3118.	The number of atoms present in 64 amu of He is ? 1) 16. 2) 32. 3) 64. 4) 8
Answer» The number of atoms present in 64 amu of He is ? 1) 16. 2) 32. 3) 64. 4) 8

Discussion

3119.	How many types of atoms are present in this world?Name those atoms and explain those?(like alpha atoms etc......)
Answer» How many types of atoms are present in this world?Name those atoms and explain those?(like alpha atoms etc......)

Discussion

3120.	The atom of an element has the electron structure 2, 7.(a) What is the atomic number of the element?(b) To which of the following would it be chemically similar? 7N, 15P, 17Cl, 18Ar(c) Why would you expect it to be similar?
Answer» The atom of an element has the electron structure 2, 7. (a) What is the atomic number of the element? (b) To which of the following would it be chemically similar? ₇N, ₁₅P, ₁₇Cl, ₁₈Ar (c) Why would you expect it to be similar?

Discussion

3121.	5 g of hydrogen reacts with 32 g of oxygen to form ________ moles of water
Answer» 5 g of hydrogen reacts with 32 g of oxygen to form ________ moles of water

Discussion

3122.	What are diastereomers?
Answer» What are diastereomers?

Discussion

3123.	Acetic acid disassociate or associate in benzene solvent? And what about acetic acid in water solvent will it disassociate or associate?
Answer» Acetic acid disassociate or associate in benzene solvent? And what about acetic acid in water solvent will it disassociate or associate?

Discussion

3124.	“The lack of determinism in quantum theory!”
Answer» “The lack of determinism in quantum theory!”

Discussion

3125.	What are the products of the reaction, CH3COOH+Na2CO3→ ?
Answer» What are the products of the reaction, $C H_{3} C O O H + N a_{2} C O_{3} \to$ ?

Discussion

3126.	The total number of ions present in 1ml of 0.1 M barium nitrate solution is:
Answer» The total number of ions present in 1ml of 0.1 M barium nitrate solution is:

Discussion

3127.	What is the product formed when nitrogen gas reacts with hydrogen gas?
Answer» What is the product formed when nitrogen gas reacts with hydrogen gas?

Discussion

3128.	What is supersaturated solution?
Answer» What is supersaturated solution?

Discussion

3129.	During evaporation, which component evaporates?
Answer» During evaporation, which component evaporates?

Discussion

3130.	What are the limitations of E. Rutherford’s model of the atom?
Answer» What are the limitations of E. Rutherford’s model of the atom?

Discussion

3131.	An ionic compound of element X and chlorine has the formula XCl3.The molecular mass of XCl3 is 118.5.What is the molecular mass of oxide of X?
Answer» An ionic compound of element X and chlorine has the formula XCl3.The molecular mass of XCl3 is 118.5.What is the molecular mass of oxide of X?

Discussion

3132.	if s orbital and p orbital are in same molecule then why s differ from p in shap
Answer» if s orbital and p orbital are in same molecule then why s differ from p in shap

Discussion

3133.	How can u show that the colourless liquid given to u is pure water!? Give atleast three tests.. Can filteration and evaporation be one of the methods???
Answer» How can u show that the colourless liquid given to u is pure water!? Give atleast three tests.. Can filteration and evaporation be one of the methods???

3133.

How can u show that the colourless liquid given to u is pure water!? Give atleast three tests.. Can filteration and evaporation be one of the methods???

Answer»

How can u show that the colourless liquid given to u is pure water!?

Give atleast three tests..

Can filteration and evaporation be one of the methods???

Discussion

3134.	An ionic compound is made up of cluster of ions. What holds together this cluster of ions?
Answer» An ionic compound is made up of cluster of ions. What holds together this cluster of ions?

Discussion

3135.	State Dalton's atomic theory.
Answer» State Dalton's atomic theory.

Discussion

3136.	a point charge is rotating in a circle of radius R with angular frequency omega. The magnetic field created by it at the centre of the circle will be
Answer» a point charge is rotating in a circle of radius R with angular frequency omega. The magnetic field created by it at the centre of the circle will be

Discussion

3137.	Which among the following has a corrosive effect on the skin?
Answer» Which among the following has a corrosive effect on the skin?

Discussion

3138.	what is the difference between cathode and anode rays
Answer» what is the difference between cathode and anode rays

Discussion

3139.	Explain why an antacid tablet is taken when you suffer from acidity.
Answer» Explain why an antacid tablet is taken when you suffer from acidity.

Discussion

3140.	A student was asked to mix egg white with water and stir well. What did he observe?
Answer» A student was asked to mix egg white with water and stir well. What did he observe?

Discussion

3141.	Define types of ions and write examples?
Answer» Define types of ions and write examples?

Discussion

3142.	(a) Why is diamond used for making cutting tools (like glass cutters) but graphite is not?(b) Why is graphite used for making dry cell electrodes but diamond is not?
Answer» (a) Why is diamond used for making cutting tools (like glass cutters) but graphite is not? (b) Why is graphite used for making dry cell electrodes but diamond is not?

Discussion

3143.	Which of the following instruments commonly does NOT use a metal found in liquid state at normal temperature and pressure?
Answer» Which of the following instruments commonly does NOT use a metal found in liquid state at normal temperature and pressure?

Discussion

3144.	86.how to decide in XeO2F2 which atom has to be placed in axial or equitorial position
Answer» 86.how to decide in XeO2F2 which atom has to be placed in axial or equitorial position

Discussion

3145.	Question 5.4 Translate the following statement into chemical equation and then balance it: Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
Answer» Question 5.4 Translate the following statement into chemical equation and then balance it: Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

Discussion

3146.	Find pH of 0.001 M HCN solution whose ka=10-³
Answer» Find pH of 0.001 M HCN solution whose ka=10-³

Discussion

3147.	How many elements from the following can react with hydrochloric acid? Na, Mg, K, Al, Zn, Ca, Ag, Pt, Cu.6
Answer» How many elements from the following can react with hydrochloric acid? Na, Mg, K, Al, Zn, Ca, Ag, Pt, Cu. 6

Discussion

3148.	One mole of fluorine is reacted with two moles of hot and concentrated KOH. The products formed are KF,H2O and O2 The molar ratio of KF,H2O and O2, respectively is;
Answer» One mole of fluorine is reacted with two moles of hot and concentrated $K O H$ . The products formed are $K F, H_{2} O$ and $O_{2}$ The molar ratio of $K F, H_{2} O$ and $O_{2}$ , respectively is;

Discussion

3149.	66.A solid AB2 has fluorite structure if all the ions along one body diagonal is removed then the formula of new compound is
Answer» 66.A solid AB2 has fluorite structure if all the ions along one body diagonal is removed then the formula of new compound is

Discussion

3150.	49.25.3 g of sodium carbonate is decomposed in enough water to make 250ml of solution.if sodium carbonates dissociates completely then what is molar concentration of sodium ion and carbonate ions
Answer» 49.25.3 g of sodium carbonate is decomposed in enough water to make 250ml of solution.if sodium carbonates dissociates completely then what is molar concentration of sodium ion and carbonate ions

Discussion

Explore topic-wise InterviewSolutions in .

Question 6.1 Balance the following chemical equation: HNO3+Ca(OH)2→Ca(NO3)2+H2O

What were the conclusions made by Rutherford as a result of alpha particle scattering experiment?

What is/are the product(s) formed on the decomposition of metal bicarbonates?

Which forces hold together neutrons and protons in the nucleus?

The sub-atomic particle responsible only for the physical properties is: [1 MARK]

What type of mixtures are separated by the technique of crystallisation?

What is the wieght of availabe oxygen from a solution of hydrogen peroxide, if 20 ml of this solution needs 25ml of0.05N of KMnO4 for complete oxidation

An element A atomic number 7 mass number 14 B electronic configuration 2, 8, 8 C electrons 13, neutrons 14 D Protons 18 neutrons 22 E electronic configuration 2, 8, 8, 1 State (i) valency of each element (ii) which one is a metal (iii) which is a non-metal (iv) which is an inert gas.

Compare the volumes of two gases containing same no. Of molecules filled in 5 litre and 10 litre cylinder respectively.

The correct order of unpaired electrons present in 'd' orbitals for elements Fe,Ti,Cr and Co is:

Naphthalene balls disappear with time without leaving any solid. Give reason

Solubility product of Agcl. Is 4.0 x 10 power-10 at 298 K .The solubility of Agcl in 0.04 M CaCl2 will be

Calculate the number of oxygen atoms in 0.10 mole of Na2 Co3 . 10H2O

Which of the following ore contains both magnesium and calcium

give me all the formula's of trignometry?

The organic compounds having the same molecular formula but different structures are known as ..........

The materials that were used for making seals

The number of atoms present in 64 amu of He is ? 1) 16. 2) 32. 3) 64. 4) 8

How many types of atoms are present in this world?Name those atoms and explain those?(like alpha atoms etc......)

The atom of an element has the electron structure 2, 7.(a) What is the atomic number of the element?(b) To which of the following would it be chemically similar? 7N, 15P, 17Cl, 18Ar(c) Why would you expect it to be similar?

5 g of hydrogen reacts with 32 g of oxygen to form ________ moles of water

What are diastereomers?

Acetic acid disassociate or associate in benzene solvent? And what about acetic acid in water solvent will it disassociate or associate?

“The lack of determinism in quantum theory!”

What are the products of the reaction, CH3COOH+Na2CO3→ ?

The total number of ions present in 1ml of 0.1 M barium nitrate solution is:

What is the product formed when nitrogen gas reacts with hydrogen gas?

What is supersaturated solution?

During evaporation, which component evaporates?

What are the limitations of E. Rutherford’s model of the atom?

An ionic compound of element X and chlorine has the formula XCl3.The molecular mass of XCl3 is 118.5.What is the molecular mass of oxide of X?

if s orbital and p orbital are in same molecule then why s differ from p in shap

How can u show that the colourless liquid given to u is pure water!? Give atleast three tests.. Can filteration and evaporation be one of the methods???

An ionic compound is made up of cluster of ions. What holds together this cluster of ions?

State Dalton's atomic theory.

a point charge is rotating in a circle of radius R with angular frequency omega. The magnetic field created by it at the centre of the circle will be

Which among the following has a corrosive effect on the skin?

what is the difference between cathode and anode rays

Explain why an antacid tablet is taken when you suffer from acidity.

A student was asked to mix egg white with water and stir well. What did he observe?

Define types of ions and write examples?

(a) Why is diamond used for making cutting tools (like glass cutters) but graphite is not?(b) Why is graphite used for making dry cell electrodes but diamond is not?

Which of the following instruments commonly does NOT use a metal found in liquid state at normal temperature and pressure?

86.how to decide in XeO2F2 which atom has to be placed in axial or equitorial position

Question 5.4 Translate the following statement into chemical equation and then balance it: Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

Find pH of 0.001 M HCN solution whose ka=10-³

How many elements from the following can react with hydrochloric acid? Na, Mg, K, Al, Zn, Ca, Ag, Pt, Cu.6

One mole of fluorine is reacted with two moles of hot and concentrated KOH. The products formed are KF,H2O and O2 The molar ratio of KF,H2O and O2, respectively is;

66.A solid AB2 has fluorite structure if all the ions along one body diagonal is removed then the formula of new compound is

49.25.3 g of sodium carbonate is decomposed in enough water to make 250ml of solution.if sodium carbonates dissociates completely then what is molar concentration of sodium ion and carbonate ions