10223 + Interview Questions in Chemistry Page 72 InterviewSolution

3551.	Why vapour pressure depend upon temperature
Answer» Why vapour pressure depend upon temperature

Discussion

3552.	Who and invented the formula W=Fs and when?
Answer» Who and invented the formula W=Fs and when?

Discussion

3553.	Question 36 Arrange the following elements in increasing order of their atomic radii. (a) Li, Be, F, N (b) Cl, At, Br, I
Answer» Question 36 Arrange the following elements in increasing order of their atomic radii. (a) Li, Be, F, N (b) Cl, At, Br, I

3553.

Question 36 Arrange the following elements in increasing order of their atomic radii. (a) Li, Be, F, N (b) Cl, At, Br, I

Answer»

Question 36
Arrange the following elements in increasing order of their atomic radii.

(a) Li, Be, F, N
(b) Cl, At, Br, I

Discussion

3554.	Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy?
Answer» Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy?

Discussion

3555.	Which of the following(s) is/are formed on hydrolysis of PCl5?
Answer» Which of the following(s) is/are formed on hydrolysis of $P C l_{5}$ ?

Discussion

3556.	Choose the solutions from among the following mixtures : Soil, Sea-water, Air, Coal, Soda-water
Answer» Choose the solutions from among the following mixtures : Soil, Sea-water, Air, Coal, Soda-water

3556.

Choose the solutions from among the following mixtures : Soil, Sea-water, Air, Coal, Soda-water

Answer»

Choose the solutions from among the following mixtures :

Soil, Sea-water, Air, Coal, Soda-water

Discussion

3557.	The zig - zag motion exhibited by the colloidal particles is known as:
Answer» The zig - zag motion exhibited by the colloidal particles is known as:

Discussion

3558.	The three fundamental particles of the atom are
Answer» The three fundamental particles of the atom are

Discussion

3559.	What will be the pH value of the strongest base?14
Answer» What will be the pH value of the strongest base? 14

Discussion

3560.	The temperature of 570 K on the Celsius scale is_____.
Answer» The temperature of $570 K$ on the Celsius scale is_____.

Discussion

3561.	12. Properties of Acid
Answer» 12. Properties of Acid

Discussion

3562.	6. d the electron affinity of chlorine from the following data. Enthalpy of formation of LiCl is = 97.5 kcal mol1, lattice energy of LiCl = 197.7 kcal mol1. Dissociation energy of chlorine is 57.6 kcal mol1, sublimation enthalpy of lithium = +38.3 kcal mol1, ionisation energy of lithium = 123.8 kcal mol1. Options: 127 kcal mol1 1210 kcal mol1 Should have chosen 90.7 kcal 1 61.6 kcal mol1
Answer» 6. d the electron affinity of chlorine from the following data. Enthalpy of formation of LiCl is = 97.5 kcal mol1, lattice energy of LiCl = 197.7 kcal mol1. Dissociation energy of chlorine is 57.6 kcal mol1, sublimation enthalpy of lithium = +38.3 kcal mol1, ionisation energy of lithium = 123.8 kcal mol1. Options: 127 kcal mol1 1210 kcal mol1 Should have chosen 90.7 kcal 1 61.6 kcal mol1

Discussion

3563.	Which acid is used in the purification of gold?
Answer» Which acid is used in the purification of gold?

Discussion

3564.	What is dofference between velocity and acceleration??
Answer» What is dofference between velocity and acceleration??

Discussion

3565.	The statement that is not true for the long form of periodic table is-
Answer» The statement that is not true for the long form of periodic table is-

Discussion

3566.	Acetylene is the first member of a family of hydrocarbons called alkynes. H−C≡C−H What is its empirical formula?
Answer» Acetylene is the first member of a family of hydrocarbons called alkynes. $H - C \equiv C - H$ What is its empirical formula?

3566.

Acetylene is the first member of a family of hydrocarbons called alkynes. H−C≡C−H What is its empirical formula?

Answer»

Acetylene is the first member of a family of hydrocarbons called alkynes.
$H - C \equiv C - H$

What is its empirical formula?

Discussion

3567.	19. Which has the maximum molarity of H3O+ ion if there is 100% ionisation? A) 9.8g of H2SO4 in 100ml solution b) 9.8g of H3PO4 in 100ml solution c) 9.8g of H3PO3 in 100ml solution d) 9.8g of H3PO2 in 100ml solution
Answer» 19. Which has the maximum molarity of H3O+ ion if there is 100% ionisation? A) 9.8g of H2SO4 in 100ml solution b) 9.8g of H3PO4 in 100ml solution c) 9.8g of H3PO3 in 100ml solution d) 9.8g of H3PO2 in 100ml solution

Discussion

3568.	Please help me, I can't understand quantum mechanics.
Answer» Please help me, I can't understand quantum mechanics.

Discussion

3569.	7. Correct order of coagulating value of the following electrolytes for a positive charged sol is Options: Na3PO4 > Na2SO4 > NaCl NaCl > Na2SO4 > Na3PO4 Na2SO4 > Na3PO4 > NaCl Na2SO4 > NaCl > Na3PO4
Answer» 7. Correct order of coagulating value of the following electrolytes for a positive charged sol is Options: Na3PO4 > Na2SO4 > NaCl NaCl > Na2SO4 > Na3PO4 Na2SO4 > Na3PO4 > NaCl Na2SO4 > NaCl > Na3PO4

Discussion

3570.	Calculate the mass of 2 mole of electron
Answer» Calculate the mass of 2 mole of electron

Discussion

3571.	What are the uses of heavy water?
Answer» What are the uses of heavy water?

Discussion

3572.	Why does diffusion become faster when substance is heated?
Answer» Why does diffusion become faster when substance is heated?

Discussion

3573.	What is Joule - Thomson experiment? What is inversion tempreture?
Answer» What is Joule - Thomson experiment? What is inversion tempreture?

Discussion

3574.	Which amongst the following gas is formed during the incomplete combustion of carbon?
Answer» Which amongst the following gas is formed during the incomplete combustion of carbon?

Discussion

3575.	Why are we able to sip hot tea or milk faster from a saucer rather than from a cup?
Answer» Why are we able to sip hot tea or milk faster from a saucer rather than from a cup?

Discussion

3576.	Crude sodium chloride obtained by crystallisation of brine solution does not contain
Answer» Crude sodium chloride obtained by crystallisation of brine solution does not contain

Discussion

3577.	Question 26Ferrous sulphate decomposes with the evolution of a gas having a characteristic odour of burning sulphur. Write the chemical reaction involved and identify the type of reaction.
Answer» Question 26 Ferrous sulphate decomposes with the evolution of a gas having a characteristic odour of burning sulphur. Write the chemical reaction involved and identify the type of reaction.

Discussion

3578.	if r1 is the radius of Earth orbit of hydrogen atom then the radius of second third and fourth orbit in terms of the r1 are
Answer» if r1 is the radius of Earth orbit of hydrogen atom then the radius of second third and fourth orbit in terms of the r1 are

Discussion

3579.	Why does water is known as universal solvent?
Answer» Why does water is known as universal solvent?

Discussion

3580.	the temperature of equal masses of three liquids A, B, C are 10^° c, 15^° C and 20^° cC the temperature when A and bare mixed is 13^° C and when B and C are mixed, it is 16^° C. awhat will be the temperature when A and C are mixed?
Answer» the temperature of equal masses of three liquids A, B, C are 10^° c, 15^° C and 20^° cC the temperature when A and bare mixed is 13^° C and when B and C are mixed, it is 16^° C. awhat will be the temperature when A and C are mixed?

Discussion

3581.	Question 65 l varies directly as m and l =5, when m=23. Find l when m =163
Answer» Question 65 l varies directly as m and l =5, when $m = \frac{2}{3}$ . Find l when m $= \frac{16}{3}$

3581.

Question 65 l varies directly as m and l =5, when m=23. Find l when m =163

Answer»

Question 65

l varies directly as m and l =5, when $m = \frac{2}{3}$ . Find l when m $= \frac{16}{3}$

Discussion

3582.	Nitrogen on gaining three electrons is known as
Answer» Nitrogen on gaining three electrons is known as

Discussion

3583.	Explain the terms in detail : Lyophillic colliods and Lyophobic colloids. Give a brief set of difference between them.
Answer» Explain the terms in detail : Lyophillic colliods and Lyophobic colloids. Give a brief set of difference between them.

3583.

Explain the terms in detail : Lyophillic colliods and Lyophobic colloids. Give a brief set of difference between them.

Answer»

Explain the terms in detail : Lyophillic colliods and Lyophobic colloids.

Give a brief set of difference between them.

Discussion

3584.	Which of the following shows the least chemical reactivity?
Answer» Which of the following shows the least chemical reactivity?

Discussion

3585.	9. Mass of Be atom = 7.016929 amu Mass of Li atom = 7.016004 amu Be undergoes electron capture at rest. The energy of neutrinos in Mev is??
Answer» 9. Mass of Be atom = 7.016929 amu Mass of Li atom = 7.016004 amu Be undergoes electron capture at rest. The energy of neutrinos in Mev is??

Discussion

3586.	Potassium Salphate & Potassium Chromate are isoshaped Compound. Potassium Chromate contains 26.8% Chromimum. What is the atomic mass of the Chromimum?
Answer» Potassium Salphate & Potassium Chromate are isoshaped Compound. Potassium Chromate contains 26.8% Chromimum. What is the atomic mass of the Chromimum?

Discussion

3587.	Which chemical compounds of elements were used by Mendeleev to gauge their chemical similarities 1)Oxides 2)Chlorides 3)Hydrides 4)Sulphites This is a multi choice question and more than 1 option can be chooses and it's there in Byjus test paper 2.Wanted to clear the doubt
Answer» Which chemical compounds of elements were used by Mendeleev to gauge their chemical similarities 1)Oxides 2)Chlorides 3)Hydrides 4)Sulphites This is a multi choice question and more than 1 option can be chooses and it's there in Byjus test paper 2.Wanted to clear the doubt

Discussion

3588.	Complete the following reaction: 2NaOH(aq)+H2SO4(aq)→
Answer» Complete the following reaction: $2 NaOH (aq) + H_{2} {SO}_{4} (aq) \to$

Discussion

3589.	64 Atomic radius order for H-,Li+,Mg+2,Al+3
Answer» 64 Atomic radius order for H-,Li+,Mg+2,Al+3

Discussion

3590.	Why is BeH2 is polymeric
Answer» Why is BeH2 is polymeric

Discussion

3591.	The anion of an element has:
Answer» The anion of an element has:

Discussion

3592.	1 mole of N2 gas at 0.8 atm takes 38 seconds to defuse through a pinhole whereas 1 mole of an unknown compound of Xenon with Flourine at 1.6 atm takes 57 seconds to defuse through the same hole. Determine the molecular formula of the compound. A) XeF2 B) XeF4 C) XeF6 D) XeF8
Answer» 1 mole of N2 gas at 0.8 atm takes 38 seconds to defuse through a pinhole whereas 1 mole of an unknown compound of Xenon with Flourine at 1.6 atm takes 57 seconds to defuse through the same hole. Determine the molecular formula of the compound. A) XeF2 B) XeF4 C) XeF6 D) XeF8

Discussion

3593.	संध्या के समय प्रकृति में क्या-क्या परिवर्तन होते हैं, कविता के आधार पर लिखिए।
Answer» संध्या के समय प्रकृति में क्या-क्या परिवर्तन होते हैं, कविता के आधार पर लिखिए।

Discussion

3594.	A___ is used to measure the atmospheric pressure.
Answer» A___ is used to measure the atmospheric pressure.

Discussion

3595.	why is ice at 273 Kelvin more effective in cooling than water at the same temperature
Answer» why is ice at 273 Kelvin more effective in cooling than water at the same temperature

Discussion

3596.	Number of sigma bonds, pi bonds and lone pair on Xe atom of XeOF(1) 4, 1, 1(2) 4, 2, 1(3) 5,1,1(4) 6,2,0
Answer» Number of sigma bonds, pi bonds and lone pair on Xe atom of XeOF(1) 4, 1, 1(2) 4, 2, 1(3) 5,1,1(4) 6,2,0

Discussion

3597.	The isotopic composition of a certain element X is 80% 24X, 10% 25X and 10% 26X. The relative-atomic mass of X is _______ .
Answer» The isotopic composition of a certain element X is 80% ²⁴X, 10% ²⁵X and 10% ²⁶X. The relative-atomic mass of X is _______ .

Discussion

3598.	(c) Ammonia burns in oxygen and the combustion, in the presence of a catalyst, may be represented by2NH3 + 212O2 → 2NO + 3H2O(i) What mass of steam is produced when 1.5 g of nitrogen monoxide is formed?(ii) What volume of oxygen, at STP, is required to form 10 moles of product?[H = 1; N = 14; O = 16. 1 mole of gas occupies 22.4 dm3 (22.4 litre) at STP]
Answer» (c) Ammonia burns in oxygen and the combustion, in the presence of a catalyst, may be represented by $2 {NH}_{3} + 2 \frac{1}{2} O_{2} \overset{}{\to} 2 NO + 3 H_{2} O$ (i) What mass of steam is produced when 1.5 g of nitrogen monoxide is formed? (ii) What volume of oxygen, at STP, is required to form 10 moles of product? [H = 1; N = 14; O = 16. 1 mole of gas occupies 22.4 dm³ (22.4 litre) at STP]

Discussion

3599.	Arrange the following substances: Nitrogen, Mercury, Iron, Chalk in increasing order of intermoleular force of attraction betwee their particles.
Answer» Arrange the following substances: Nitrogen, Mercury, Iron, Chalk in increasing order of intermoleular force of attraction betwee their particles.

Discussion

3600.	62 Even though lithium has high ionisation energy why it acts as a reducing agent?
Answer» 62 Even though lithium has high ionisation energy why it acts as a reducing agent?

Discussion

Explore topic-wise InterviewSolutions in .

Why vapour pressure depend upon temperature

Who and invented the formula W=Fs and when?

Question 36 Arrange the following elements in increasing order of their atomic radii. (a) Li, Be, F, N (b) Cl, At, Br, I

Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy?

Which of the following(s) is/are formed on hydrolysis of PCl5?

Choose the solutions from among the following mixtures : Soil, Sea-water, Air, Coal, Soda-water

The zig - zag motion exhibited by the colloidal particles is known as:

The three fundamental particles of the atom are

What will be the pH value of the strongest base?14

The temperature of 570 K on the Celsius scale is_____.

12. Properties of Acid

Which acid is used in the purification of gold?

What is dofference between velocity and acceleration??

The statement that is not true for the long form of periodic table is-

Acetylene is the first member of a family of hydrocarbons called alkynes. H−C≡C−H What is its empirical formula?

19. Which has the maximum molarity of H3O+ ion if there is 100% ionisation? A) 9.8g of H2SO4 in 100ml solution b) 9.8g of H3PO4 in 100ml solution c) 9.8g of H3PO3 in 100ml solution d) 9.8g of H3PO2 in 100ml solution

Please help me, I can't understand quantum mechanics.

7. Correct order of coagulating value of the following electrolytes for a positive charged sol is Options: Na3PO4 > Na2SO4 > NaCl NaCl > Na2SO4 > Na3PO4 Na2SO4 > Na3PO4 > NaCl Na2SO4 > NaCl > Na3PO4

Calculate the mass of 2 mole of electron

What are the uses of heavy water?

Why does diffusion become faster when substance is heated?

What is Joule - Thomson experiment? What is inversion tempreture?

Which amongst the following gas is formed during the incomplete combustion of carbon?

Why are we able to sip hot tea or milk faster from a saucer rather than from a cup?

Crude sodium chloride obtained by crystallisation of brine solution does not contain

Question 26Ferrous sulphate decomposes with the evolution of a gas having a characteristic odour of burning sulphur. Write the chemical reaction involved and identify the type of reaction.

if r1 is the radius of Earth orbit of hydrogen atom then the radius of second third and fourth orbit in terms of the r1 are

Why does water is known as universal solvent?

the temperature of equal masses of three liquids A, B, C are 10^° c, 15^° C and 20^° cC the temperature when A and bare mixed is 13^° C and when B and C are mixed, it is 16^° C. awhat will be the temperature when A and C are mixed?

Question 65 l varies directly as m and l =5, when m=23. Find l when m =163

Nitrogen on gaining three electrons is known as

Explain the terms in detail : Lyophillic colliods and Lyophobic colloids. Give a brief set of difference between them.

Which of the following shows the least chemical reactivity?

9. Mass of Be atom = 7.016929 amu Mass of Li atom = 7.016004 amu Be undergoes electron capture at rest. The energy of neutrinos in Mev is??

Potassium Salphate & Potassium Chromate are isoshaped Compound. Potassium Chromate contains 26.8% Chromimum. What is the atomic mass of the Chromimum?

Which chemical compounds of elements were used by Mendeleev to gauge their chemical similarities 1)Oxides 2)Chlorides 3)Hydrides 4)Sulphites This is a multi choice question and more than 1 option can be chooses and it's there in Byjus test paper 2.Wanted to clear the doubt

Complete the following reaction: 2NaOH(aq)+H2SO4(aq)→

64 Atomic radius order for H-,Li+,Mg+2,Al+3

Why is BeH2 is polymeric

The anion of an element has:

1 mole of N2 gas at 0.8 atm takes 38 seconds to defuse through a pinhole whereas 1 mole of an unknown compound of Xenon with Flourine at 1.6 atm takes 57 seconds to defuse through the same hole. Determine the molecular formula of the compound. A) XeF2 B) XeF4 C) XeF6 D) XeF8

संध्या के समय प्रकृति में क्या-क्या परिवर्तन होते हैं, कविता के आधार पर लिखिए।

A___ is used to measure the atmospheric pressure.

why is ice at 273 Kelvin more effective in cooling than water at the same temperature

Number of sigma bonds, pi bonds and lone pair on Xe atom of XeOF(1) 4, 1, 1(2) 4, 2, 1(3) 5,1,1(4) 6,2,0

The isotopic composition of a certain element X is 80% 24X, 10% 25X and 10% 26X. The relative-atomic mass of X is _______ .

Arrange the following substances: Nitrogen, Mercury, Iron, Chalk in increasing order of intermoleular force of attraction betwee their particles.

62 Even though lithium has high ionisation energy why it acts as a reducing agent?