InterviewSolution
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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.
| 1851. |
All types of motion |
| Answer» All types of motion | |
| 1852. |
Noble gases are considered to be inert. What do you understand by the term, ‘inert’? |
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Answer» Noble gases are considered to be inert. What do you understand by the term, ‘inert’? |
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| 1853. |
Hydrogen is placed above the alkali metals in both Modern periodic table and Mendeleev's periodic table, but why it is considered as a demerit only in Mendeleev's periodic table and not in Modern periodic table? |
| Answer» Hydrogen is placed above the alkali metals in both Modern periodic table and Mendeleev's periodic table, but why it is considered as a demerit only in Mendeleev's periodic table and not in Modern periodic table? | |
| 1854. |
Copper oxide was prepared by 2 different methods. In case 1, 1.75 g of metal gives 2.19 grams of oxide. In case 2, 1.14 grams of metal gives 1.43 grams of oxide. How we can illustrate this according to the law of constant proportion |
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Answer» Copper oxide was prepared by 2 different methods. In case 1, 1.75 g of metal gives 2.19 grams of oxide. In case 2, 1.14 grams of metal gives 1.43 grams of oxide. How we can illustrate this according to the law of constant proportion |
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| 1855. |
If 0.5 mol of bacl2 is mixed with 0.2 mol of na3po4 the maximum number of moles of ba3(po4)2 that can be formed is?? |
| Answer» If 0.5 mol of bacl2 is mixed with 0.2 mol of na3po4 the maximum number of moles of ba3(po4)2 that can be formed is?? | |
| 1856. |
Structures of nuclei of three atoms A, B, and C are given below: A has 90 protons and 146 neutrons. B has 92 protons and 146 neutrons. C has 90 protons and 148 neutrons. Based on the above data, which of these atoms are isotopes and which are isobars? |
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Answer» Structures of nuclei of three atoms A, B, and C are given below: A has 90 protons and 146 neutrons. B has 92 protons and 146 neutrons. C has 90 protons and 148 neutrons. Based on the above data, which of these atoms are isotopes and which are isobars? |
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| 1857. |
The volume of ethyl alcohol and water must be mixed together to prepare 250 ml of 60% by volume of alcohol in water |
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Answer» The volume of ethyl alcohol and water must be mixed together to prepare 250 ml of 60% by volume of alcohol in water |
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| 1858. |
Identify the correct order of acidic strength of CO2, CuO, CaO, and H2O: |
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Answer» Identify the correct order of acidic strength of CO2, CuO, CaO, and H2O: |
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| 1859. |
Explain the Dalton's atomic theory complete in breif |
| Answer» Explain the Dalton's atomic theory complete in breif | |
| 1860. |
Which of the statements about the reaction below are incorrect? 2PbO(s)+C(s)→2Pb(s)+CO2(g) |
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Answer» Which of the statements about the reaction below are incorrect? 2PbO(s)+C(s)→2Pb(s)+CO2(g) |
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| 1861. |
Why water is considered as compound and not an element |
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Answer» Why water is considered as compound and not an element |
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| 1862. |
18. What are spectator ions ? |
| Answer» 18. What are spectator ions ? | |
| 1863. |
Convert the temperature of 573 K to Celsius scale. |
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Answer» Convert the temperature of 573 K to Celsius scale. |
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| 1864. |
What are the postulates of Dalton’s atomic theory? |
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Answer» What are the postulates of Dalton’s atomic theory? |
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| 1865. |
The anode of an electrochemical reaction involves ___________ |
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Answer» The anode of an electrochemical reaction involves ___________ |
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| 1866. |
state the method by which we can prepare colloid of starch |
| Answer» state the method by which we can prepare colloid of starch | |
| 1867. |
29. What is Monosubstituted and disubstituted product |
| Answer» 29. What is Monosubstituted and disubstituted product | |
| 1868. |
It is said that identical particles are pure, then is hair pure? |
| Answer» It is said that identical particles are pure, then is hair pure? | |
| 1869. |
Calculate the molecular mass of the following substances: (a) Ethyne (C2H2)(b) Sulphur molecule (S8)(c) Phosphorus molecule (P4)(d) Hydrochloric acid (HCl)(e) Nitric acid (HNO3) |
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Answer» Calculate the molecular mass of the following substances: (a) Ethyne (C2H2) (b) Sulphur molecule (S8) (c) Phosphorus molecule (P4) (d) Hydrochloric acid (HCl) (e) Nitric acid (HNO3) |
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| 1870. |
Helium atom has an atomic mass of 4 u and two protons in its nucleus. How many neutrons does it have? |
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Answer» Helium atom has an atomic mass of 4 u and two protons in its nucleus. How many neutrons does it have? |
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| 1871. |
Protons are fundamental particles there mass and charge is fixed then why does the nature ofproton depends on the gas taken? |
| Answer» Protons are fundamental particles there mass and charge is fixed then why does the nature ofproton depends on the gas taken? | |
| 1872. |
How do we calculate the moles of a substance and the number of particles? |
| Answer» How do we calculate the moles of a substance and the number of particles? | |
| 1873. |
24.If electronegativity difference between two atoms is `2'. Then calculate percentage of ionic character in the molecule. |
| Answer» 24.If electronegativity difference between two atoms is `2'. Then calculate percentage of ionic character in the molecule. | |
| 1874. |
State whether the following statements are True or False. Correct the false statement:(a) An atom as a whole is electrically neutral.(b) Mass of atom is distributed evenly within it.(c) An electron has same mass as that of proton.(d) The K shell has maximum energy.(e) Isotopes have same atomic number but different atomic mass number. |
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Answer» State whether the following statements are True or False. Correct the false statement: (a) An atom as a whole is electrically neutral. (b) Mass of atom is distributed evenly within it. (c) An electron has same mass as that of proton. (d) The K shell has maximum energy. (e) Isotopes have same atomic number but different atomic mass number. |
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| 1875. |
Write a balanced moleculer equation for the laboratory preparation of ammonia from ammonium chloride. |
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Answer» Write a balanced moleculer equation for the laboratory preparation of ammonia from ammonium chloride. |
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| 1876. |
6.Cl exits in two isotopic forms cl-37 and cl-38 its atomic mass is 35.5. This indicates the ratio of cl -37 and cl-38 is approximately 1)1:2 2)1:1 3)1:3 4)3:1 |
| Answer» 6.Cl exits in two isotopic forms cl-37 and cl-38 its atomic mass is 35.5. This indicates the ratio of cl -37 and cl-38 is approximately 1)1:2 2)1:1 3)1:3 4)3:1 | |
| 1877. |
Question 40You are provided with a mixture containing sand, iron filings, ammonium chloride and sodium chloride. Describe the procedures you would use to separate these constituents from the mixture? |
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Answer» Question 40 You are provided with a mixture containing sand, iron filings, ammonium chloride and sodium chloride. Describe the procedures you would use to separate these constituents from the mixture? |
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| 1878. |
19. Which of the following carbonyls will have the strongest C O bond ? (1) [ V(CO)6 ] (2) [Fe(CO) ]5 (3) [ Mn(CO)6 ]+ (4) [Cr(CO)6 ] |
| Answer» 19. Which of the following carbonyls will have the strongest C O bond ? (1) [ V(CO)6 ] (2) [Fe(CO) ]5 (3) [ Mn(CO)6 ]+ (4) [Cr(CO)6 ] | |
| 1879. |
How does the sun and wind influence the formation of soil? |
| Answer» How does the sun and wind influence the formation of soil? | |
| 1880. |
The change of matter from gaseous state to liquid state is called ___ . |
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Answer» The change of matter from gaseous state to liquid state is called |
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| 1881. |
The bhor orbit radius for the hydrogen atom (n=1) is approximate 0.53A°. the radius for the first excited state (n=2) orbit is in(A°) |
| Answer» The bhor orbit radius for the hydrogen atom (n=1) is approximate 0.53A°. the radius for the first excited state (n=2) orbit is in(A°) | |
| 1882. |
Identify the gas produced during destructive distillation of coal. |
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Answer» Identify the gas produced during destructive distillation of coal. |
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| 1883. |
what is difference between anode and cathode? |
| Answer» what is difference between anode and cathode? | |
| 1884. |
If the charges of protons and electrons in an atom was switched to negative and positive charges respectively, would the atom stability be affected? justify the reason. |
| Answer» If the charges of protons and electrons in an atom was switched to negative and positive charges respectively, would the atom stability be affected? justify the reason. | |
| 1885. |
Can phenol can react with metal and form some other compound |
| Answer» Can phenol can react with metal and form some other compound | |
| 1886. |
The amount of heat released when 0.1 M, 100HCI is mixed with 0.2 M, 200 ml NAOH is93\lbrack Given: H OH H2O, AH =-57.1 kJ mor11 u(1) 0.571 kJ(3) 571 kJK2) 5.71 kJ(4) 0.0571 kJLoGontCoo |
| Answer» The amount of heat released when 0.1 M, 100HCI is mixed with 0.2 M, 200 ml NAOH is93\lbrack Given: H OH H2O, AH =-57.1 kJ mor11 u(1) 0.571 kJ(3) 571 kJK2) 5.71 kJ(4) 0.0571 kJLoGontCoo | |
| 1887. |
how many max. no. of electron present in n=5 orbit? |
| Answer» how many max. no. of electron present in n=5 orbit? | |
| 1888. |
A gas which obeys the ____________ under all conditions of temperature and pressure is called an ideal gas. |
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Answer» A gas which obeys the ____________ under all conditions of temperature and pressure is called an ideal gas. |
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| 1889. |
Calculate the molarity of a solution obtained by mixing of 750 mL of 0.5 M HCl with 250 mL of 2 M HCl: |
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Answer» Calculate the molarity of a solution obtained by mixing of 750 mL of 0.5 M HCl with 250 mL of 2 M HCl: |
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| 1890. |
STATEMENT - 1: 20Ne and 22Ne are isotopes. STATEMENT - 2: The isotopes of noble gases don't exist because they are inert. |
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Answer» STATEMENT - 1: 20Ne and 22Ne are isotopes. |
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| 1891. |
A 2 gram sample of sodium carbonate and sodium bicarbonate losses 0.248 gram when heated to 300 degree Celsius the temperature at which Sodium Bicarbonate decomposers into sodium carbonate, carbon dioxide and water what is the percent of sodium carbonate in the given mixture |
| Answer» A 2 gram sample of sodium carbonate and sodium bicarbonate losses 0.248 gram when heated to 300 degree Celsius the temperature at which Sodium Bicarbonate decomposers into sodium carbonate, carbon dioxide and water what is the percent of sodium carbonate in the given mixture | |
| 1892. |
The matter is _________ in nature. |
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Answer» The matter is _________ in nature. |
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| 1893. |
Even two or three crystals of potassium permanganate can impart color to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation? |
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Answer» Even two or three crystals of potassium permanganate can impart color to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation? |
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| 1894. |
93.5g sample of oleum is added to 1litre of 1.6M NaOH solution density(1g/mL).If concentration ofH+ ions in remaining solution is 0.4M,percentage labeling of oleum is? |
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Answer» 93.5g sample of oleum is added to 1litre of 1.6M NaOH solution density(1g/mL).If concentration of H+ ions in remaining solution is 0.4M,percentage labeling of oleum is? |
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| 1895. |
Why cannot you smell its perfume at a short distance when incense stick is not lighted ? |
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Answer» Why cannot you smell its perfume at a short distance when incense stick is not lighted ? |
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| 1896. |
what is degree of disoaciation? |
| Answer» what is degree of disoaciation? | |
| 1897. |
49. How to calculate secondary valency of pdcl2.4NH3 Nicl2,.6H2O Ptcl4.2Hcl |
| Answer» 49. How to calculate secondary valency of pdcl2.4NH3 Nicl2,.6H2O Ptcl4.2Hcl | |
| 1898. |
I learnt this in atoms and molecules chapter "Two protons will also tend to repel each other because they both have a positive charge. On the other hand, electrons and protons will be attracted to each other because of their unlike charges."but I have a doubt, that is, if protons can attract electrons,then why electrons in the atom is revolving around the protons and not attracting it. |
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Answer» I learnt this in atoms and molecules chapter "Two protons will also tend to repel each other because they both have a positive charge. On the other hand, electrons and protons will be attracted to each other because of their unlike charges."but I have a doubt, that is, if protons can attract electrons,then why electrons in the atom is revolving around the protons and not attracting it. |
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| 1899. |
24. Sodium carbonate contains 43.4% Na 11.3% c and 45.3%O if the law of constant proportion is valid then weight of Na in 6 gm of Na2co3 obtained from other sources will be |
| Answer» 24. Sodium carbonate contains 43.4% Na 11.3% c and 45.3%O if the law of constant proportion is valid then weight of Na in 6 gm of Na2co3 obtained from other sources will be | |
| 1900. |
Specific heat of hydrogen at constant pressure is 30 joule per Kelvin per mol. If unit of length changed to 50 cm, unit of time changes to 1/4 sec and unit of temperature changes to 4 K keeping the units of mass and amount of substance same. Find the value of specific heat of hydrogen in new system of units. (1) 15 (2) 30 (3) 10 (4) 20 |
| Answer» Specific heat of hydrogen at constant pressure is 30 joule per Kelvin per mol. If unit of length changed to 50 cm, unit of time changes to 1/4 sec and unit of temperature changes to 4 K keeping the units of mass and amount of substance same. Find the value of specific heat of hydrogen in new system of units. (1) 15 (2) 30 (3) 10 (4) 20 | |