InterviewSolution
Saved Bookmarks
InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.
| 801. |
Twomarrow is my chemistry exam can anybody tell me some important question |
| Answer» Are u student<br>Nice but not up to the mark<br>How was your exam tushar??<br>Best of luck tushar.... ?? | |
| 802. |
Practical on titration |
| Answer» https://youtu.be/XD5GZYjtGekCheck out this | |
| 803. |
How does hydrogen peroxide act as bleaching powder |
| Answer» H2O2->H2O+[O] | |
| 804. |
Prepare the ionic crystal of sodium chloride and potassium chloride . |
| Answer» | |
| 805. |
What is gibbs free energy? ? |
| Answer» The thermodynamic quantity of a system whose decrease in value during a process is equal to useful workdone by the system is called gibbs free energy.<br>The energy which is required to do useful work is called gibbs free energy | |
| 806. |
how to convert methane to pentanoic acid |
| Answer» | |
| 807. |
Structure of compound 4,4-dimethyl-3-ethylpentane |
| Answer» | |
| 808. |
A compound |
| Answer» | |
| 809. |
Fishes die in a water body with abundance of phytoplankton. Give reason |
| Answer» As the phytoplankton utilises the oxygen . fishes are in lack of oxygen so they die.<br>Please tell me the answer<br>This question came in my exam today. | |
| 810. |
Blue baby syndrome |
| Answer» | |
| 811. |
Who discover protan |
| Answer» Rutherford discovered proton chadwick discovered neutron<br>Rutherford<br>James chadwick | |
| 812. |
What is tetration |
| Answer» Titartion is a method to find molarity of solution by titrating it against standard solution(whose molarity is known).eg- titartion of NaOH(titrant,unknown molarity) against oxalic acid(standard solution, known molarity). | |
| 813. |
Write iupac name of compound C6h5ch2 cooh |
| Answer» 2-Phenylethanoic acid | |
| 814. |
Electronic configuration of d block elements |
| Answer» (n-1)d 1 to 10 ns 1 to 2 | |
| 815. |
What do you mean by autoprotolysis of water? What is its signiy |
| Answer» | |
| 816. |
Which of the following transition will have minimum wavelength and whyn4 ---- n1n4 ---- n2n2 ---- n1 |
| Answer» Please answer to the question everyone | |
| 817. |
Surface tension |
| Answer» Surface tension is the property of liquid due to which the free surface of liquid at rest behaves like a stretched membrane and tries to acquire the minimum surface area.\xa0For e.g., oil and water do not mix, oil rises up in a cotton wick. | |
| 818. |
How does H2O2 behave as a bleaching agents |
| Answer» H2O2 or hydrogen peroxide acts as a strong oxidizing agent both in acidic and basic media. When added to a cloth, it breaks the chemical bonds of the chromophores (colour producing agents). ... Thus the bleaching action of H2O2 is due to the oxidation of colouring matter by nascent oxygen. | |
| 819. |
Explain buffer action of acidic buffer |
| Answer» | |
| 820. |
Is 2-ethyl-1-nitrocyclohexane correct ? |
| Answer» No....numbering should start from ethyl ...because of alphabetical order | |
| 821. |
Define ionigation enthalpy |
| Answer» Amount of energy required to remove an electron from an isolated gaseous atom. Increases left to right in period. | |
| 822. |
What are the causes of temporary hardness and permanent hardness of water |
| Answer» Temporary hardness is caused by bicarbonate of ca and mgParament hardness is caused by chloride and sulphate of ca and mg | |
| 823. |
Brown ring test |
| Answer» | |
| 824. |
Salt analysis of NH4Cl??? |
| Answer» | |
| 825. |
Why is N2 more stable than O2 |
| Answer» Nitrogen has half paired electronic configuration<br>This is because O2 is more reactive due to the presence of 2 unpaired electrons. | |
| 826. |
Write all the quantum no.s for an unpaired electron of copper |
| Answer» N=4,l=0,m=0,ms=-1/2 | |
| 827. |
Out Na and Mg which has higher first ionisation energy |
| Answer» Aman correct answer is Mg has higher first ionisation energy because of smallerbin size than Na.<br>If i m wrong then correct me<br>Na has higher first ionisation energy....than Mg<br>Mg is more than na | |
| 828. |
How will you convert propan-1-ol into propene |
| Answer» Use conc. H2so4 and do dehydration | |
| 829. |
explain atomic spectra of hydrogen? |
| Answer» | |
| 830. |
Anyone can please tell me the weight age of hydrogen chapter and Environmental Chemistry in ppr |
| Answer» Hydrogen 3 max environmental chemistry 3 max | |
| 831. |
What is empirical and molecular formula |
| Answer» Molecular formula- show the autual no of atom of the element in a compound.Empirical formula- show the simplest ,integer ratio of the atom of the element in a compound. | |
| 832. |
Define standard hydrogen electrode |
| Answer» | |
| 833. |
How many significant figures are present in 0.04597? |
| Answer» 4<br>4<br>There are 5 significant figures. | |
| 834. |
Write the names of isotopes of hydrogen |
| Answer» There are three isotopes of hydrogen1.Protium 2.Deuterium 3.Tritium. | |
| 835. |
What is antimarkoni koffs rule |
| Answer» When HBr gets added to an unsymmetrical alkene in the presence of peroxide then, the negative part of the addendum gets attached to the carbon containing more number of hydrogen atoms(in opposite to the markovnikov\'s rule) | |
| 836. |
Why are the atomic masses of most of the elements fractional? |
| Answer» Due to isotopes | |
| 837. |
Give chemical equation to show the reaction between silica is treated with hydrogen fluoride. |
| Answer» | |
| 838. |
Give chemical equation to show the reaction between Borontrifluoride with sodium hydride. |
| Answer» 2 BF3 + 6NaH ---------> B2H6 + 6NaF | |
| 839. |
Write balanced equation for boric acid is added to water. |
| Answer» H3BO3 + 2 HOH -----> B(OH)4 + H3O | |
| 840. |
General Electronic Configurations of s-block,p-block,d-block&f-block elements |
| Answer» S-block= ns^1-2 P-block= ns^1-2 np^1-6D-block= (n-1)d^1-10 ns^0-2F-bolck= (n-2)f^0-14 (n-1)d^0-2 ns^2 | |
| 841. |
Ionic product |
| Answer» | |
| 842. |
Guys share your strategy for chemistry exam preparation. |
| Answer» Sanidhya your papers are over send me some English Paper questions dude.<br>Thanks Sanidhya<br>Just clear all the questions of s- block,p-block,organic chemistry, hydrocarbon from ncert solutions because in my exam many questions came from these chapters........so before exam dont forget to have a look on these chapters........because these chapters may create a huge difference........? | |
| 843. |
Compare the H-N-H bond angle in NH3; NH4 +; NH2- |
| Answer» Increasing order NH4, NH3,NH2 | |
| 844. |
Using s,p,d,f notation, describe the orbital with the following quantum numbers n=2,n=1 |
| Answer» | |
| 845. |
What is uncertain in the uncertainity principle |
| Answer» | |
| 846. |
what is comonigetion |
| Answer» | |
| 847. |
What is meant by standard electrode potential |
| Answer» A potential difference develops between the electrode and the electrolyte which is called electrode potential. When the concentrations of all the species involved in a half-cell is unity (concentration is 1M ) and temperature is 298 K, the electrode potential is known as standard electrode potential. | |
| 848. |
Ideal gas eq derivation states of matter |
| Answer» | |
| 849. |
Explain law of chemical equilibrium |
| Answer» This is tooooo much<br>At a given temperature the product of concentration of the reaction product raised to the respective stoichiometric coefficients in the balance chemical equation divide by the product of the concentration of the reactants raised to their stoichiometric coefficients has a constant value | |
| 850. |
What do you mean by hyberdisation |
| Answer» Intermixing of varoius atomic orbitals of different shape, size and energy to form new orbitals of same shape, size and energy.<br>Intermixing of atomic oribtals having different shape and slightely difference in energy.So tha the redistribution of energy take place to form a new set of atomic orbitals is called hybrid orbitals and the process is called hyberdisation. | |