InterviewSolution
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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.
| 2651. |
Given density of water in 1 g/ml, find in kg/m^3 |
| Answer» To convert g/ml to kg/m^3, we need to multiply the value with 1000. Therefore, density of water (in kg/m^3) is 1000 kg/m^3.<br>1000 | |
| 2652. |
Calculate the amount of water produced by the combustion of 25 g of methane |
| Answer» You can solve it through mass mass relation<br>Final answer is 28.125gm | |
| 2653. |
What is the molarity of Co2 |
| Answer» 12 grams of\xa0carbon dioxide\xa0(molecular weight = 48) dissolved in 200 ml of water. The\xa0molarity\xa0would be (12/48) x (1000/200) which would become (0.25) x (5) = 1.25 molar. | |
| 2654. |
Plasmodium is a slime mould Or a sporozoan? |
| Answer» Plasmodium\xa0is a\xa0sporozoan\xa0parasite that causes\xa0malaria. Whereas the\xa0plasmodium\xa0is a wall-less mass of multinucleated protoplasm of plasmodial\xa0slime molds.<br>Plasmodium\xa0is a\xa0sporozoan\xa0parasite that causes\xa0malaria. Whereas the\xa0plasmodium\xa0is a wall-less mass of multinucleated protoplasm of plasmodial\xa0slime molds. | |
| 2655. |
How many of you have not started 11th studies ? |
| Answer» Me<br>Me<br>I<br>10 days before I had started<br>Me | |
| 2656. |
I\'m confused to choose my coaching please guide me to the best coaching for neet. |
| Answer» Byjus best h neet k liye<br>don\'t find any offline coaching (nowadays they are too online).you can go for online or digital platforms of renowned coaching like Allen , akash , catalyser. they are much better and specially for neet as neet require more self study so you will be getting more time for it. .best of luck<br>Aakaash digital or physics wallah arjuna batch | |
| 2657. |
From PCM stream how to become sci teacher for 5 to 10th class ..please tell me |
| Answer» You clear bsc in subject that you want | |
| 2658. |
Write the names and ration of different velocities gases molecules |
| Answer» | |
| 2659. |
What are the alize |
| Answer» Alizé is a line of alcoholic drinks. It is produced in several varieties that can be consumed "neat" or can be used in mixed drinks. As of 2020, the line consists of eight vodka-based liqueurs, all of which are 16% alcohol. | |
| 2660. |
second law of thermodynamics in terms of entrophy |
| Answer» | |
| 2661. |
Study of acidity of fruit and vegetable juices |
| Answer» | |
| 2662. |
Are bhai meko koe btao ki me pdu kese meko kuch bhi smjh nahi aa rha he ????please help me yrr |
| Answer» Are par jis par books hi na ho sirf telegram se pdf ho vo kese kare start?<br>App sb ko dip se thanks ☺️☺️<br>Don\'t worry Saransh just read chapters agar bore ho raha hai read karne ko toh see YouTube videos which ever u feel comfortable with<br>Books open kro aur lg jao kaam pr bina books open kiya nhi pd sakte?<br>Krna Kya hai..Bhai..bass jai shree ram bolo aur shuru ho jaao? | |
| 2663. |
Have you any one notes of structure of atom....... |
| Answer» Ee<br>Chiranjiv we can\'t post pictures over here so contact ur classmates.<br>I want......hand written note....<br>This app provides us all chapter notes n if uhh want another notes then refer to this link: ------ https://www.learncbse.in/structure-atom-cbse-notes-class-11-chemistry/ | |
| 2664. |
What is meant by equilibrium |
| Answer» Suhana?<br>I\'m fine..n you? | |
| 2665. |
Why He is not form |
| Answer» He does not form molecule because of it\'s highly stability and also h2 and 0 bond order.<br>He does not form molecule because of it\'s highly stability and also h2 and 0 bond order. | |
| 2666. |
Why halogen acts as good oxidizing agent |
| Answer» The general electronic configuration of halogens is np5, where n = 2-6. Thus, halogens need only one more electron to complete their octet and to attain the stable noble gas configuration. Also, halogens are highly electronegative with low dissociation energies and high negative electron gain enthalpies. Therefore, they have a high tendency to gain an electron. Hence, they act as good oxidizing agents. | |
| 2667. |
To which block do the normal elements belong? |
| Answer» S-block (Na, Mg, Ca,etc.) | |
| 2668. |
Structure of dz² |
| Answer» In dz2 orbital, there are\xa02 lobes which lie on the z-axis\xa0i.e. one lobe on the +ve z-axis and other on the -ve z-axis. Other than these 2 lobes, there is also\xa0a ring shaped region around the lobe. | |
| 2669. |
How do lithium resembles magnesium and why |
| Answer» Yes, because of diagonal relationship. | |
| 2670. |
State how grignard\'s reagant is prepared |
| Answer» | |
| 2671. |
What is grignard reagant and how it is prepared |
| Answer» No I dont even need to I only asked if you were them because some old "hisab" is left with me from them<br>i m neither of them & i can see ,, you r not dhruv ,, and u need not to know me ,,<br>You are shreya sharma aur shreyas - s ! ?<br>And how is it prepared<br>R-Mg-X is gregnard\'s reagent ... check your book u can find rxn | |
| 2672. |
Prepare crystals of pure copper sulphate from a given impure sample of blue vitriol |
| Answer» The crystals of pure blue color copper sulfate (\xa0)Explanation:Experiment to prepare crystals of pure Copper Sulfate (\xa0) from a given impure sample of the blue vitriol is as follows -Theory -\tSample + water + few drops of dilute sulfuric acid ( to prevent hydrolysis of copper sulfate).\tCopper sulfate is dissolved and the insoluble impurities are left over.\tThe solution is filtered out. The filtrate is concentrated up to the crystallization point and then cooled.\tAfter cooling, crystals of copper sulfate (\xa0) is filtered out.Requirements -\xa0Copper sulfate sample, a beaker, a china dish, a funnel, test tube, a glass rod, an evaporating dish and a policemanProcedure -\xa0Preparation of Solution\tTake about 25-30 ml of water + pinch of the powdered crude copper sulfate. Stirring the solution and repeating the same additions and stirring until some of it remains undissolved + 2-3 ml of dilute sulfuric acid (making the solution clear that prevents hydrolysis of the copper sulfate)Formation of crystals\tThe solution is filtered out. The filtrate (left in a china dish) is concentrated up to the crystallization point and then cooled. Heating the solution till it is reduced to about one-third of its original volume. Stir it to avoid the crust formation\tThe formation of a crust or tiny crystals on the glass rod indicates the crystallization point. Now stop heating.Transferring and cooling the hot saturated solution in the crystallizing dish. On cooling it we will get deep blue crystals of copper sulfateSeparation of Crystals and Drying\tDecant + Wash the crystals with a little ethyl alcohol + water\tFiltered on filter paperConclusion -\xa0The crystals of pure blue color copper sulfate (\xa0) are obtained that are transparent. | |
| 2673. |
What are the resonance structures for benzyl carbocation? |
| Answer» A benzylic carbocation is a resonance-stabilized carbocation in each of the two equally stable major resonance forms of which the formal charge of +1 is on a benzylic carbon. eg: The lightest benzylic carbocation 1 is called the benzyl carbocation. | |
| 2674. |
Detect an element present in given compound chemistry practical |
| Answer» | |
| 2675. |
Convert ethyne to but-2-yne |
| Answer» By polymerisation of ethyne. | |
| 2676. |
Why o less gain enthalpy than sulphur |
| Answer» | |
| 2677. |
How many moles of proton will weight 200gm |
| Answer» The mass of 1 proton is same as the mass of 1 Hydrogen atom. One mole of hydrogen atom weighs 1 gm. Or, 1 mole of proton will weigh 1 gm. Therefore, 200 moles of proton will weigh 200gm. | |
| 2678. |
How many moles of electron will weigh 1 kg |
| Answer» 1) first calculate the no. of electrons in 1g.2) then, multiply the value with 100, u will get the answer!! | |
| 2679. |
Define heat of hydrogenations |
| Answer» Heat of hydrogenation (symbol: ΔHhydro, ΔHº) of an alkene is the standard enthalpy of catalytic hydrogenation of an alkene. Catalytic hydrogenation of an alkene is always exothermic. Heat of hydrogenation of alkenes is a measure of the stability of carbon-carbon double bonds. | |
| 2680. |
What is the difference between pie bond and sigma bond |
| Answer» Sigma bond is formed from head to head overlapping of sp3 hybridised orbitals,whereas pi bond is formed by side to side overlapping | |
| 2681. |
Calculate Bond order of Li2 |
| Answer» 1 | |
| 2682. |
Formula of Hard water and Hydrogen pereoxide |
| Answer» Hard water D2OHydrogen per oxide H2O2 | |
| 2683. |
Calculate the energy associated with the second orbit of be 2+.what is the radius of this orbit? |
| Answer» | |
| 2684. |
Draw the bond structure of 2 metyle hexane |
| Answer» | |
| 2685. |
An alkane a on ozonolysis gives a mixture of ethanal and propanal write the structure of a |
| Answer» | |
| 2686. |
Sir / mam and friends please report #anish singh he is very cheap and abusing ... |
| Answer» Yes | |
| 2687. |
Carbon show carnation property but lead does not |
| Answer» So sorry its inert pair effect if u dont understand then tell me<br>Because due to high inret pair effect its electron have less tendency to form multiple bond and also its size its very large so due to interatomic repulsion multiple bonds can not be formed | |
| 2688. |
What is aufbau principle?? |
| Answer» According to Aufbau\'s principal, electrons start getting filled in the increasing order of atomic orbitals\' energy level i.e. first they get into orbital with lowest energy then start getting filled in higher energy level orbitals. | |
| 2689. |
What is magnetic quantum number ? |
| Answer» That is orbital in subshell | |
| 2690. |
Balance the equation : cr(oh)3 + Io3- --cr3+ + I- |
| Answer» | |
| 2691. |
\'CH3-CH=CH-CH=CH-CH3\'what is it called? |
| Answer» Hexa-2,5_diene<br>Hexa-2, 5- diene<br>Hexa 2,4 diene<br>Hex-2,3-diene | |
| 2692. |
Iupac name of ch3ch=chch3 |
| Answer» Bute-2-ene<br>Ethan<br>Butene<br>Ethan | |
| 2693. |
why molecule of neon fail to exist |
| Answer» Neon has a bond order of zero(Anti bonding orbitals=bonding orbital electron) as the molecular orbital of neon is completely filled hence no bond is form in neon thus the molecule doesn\'t exist | |
| 2694. |
Out of Ortho and para nitro phenol which is more volatile and why? |
| Answer» O nitrophenol is more volatile because in o nitrophenol intramolecular h bond occurs whereas in p nitrophenol h bond is not so significant | |
| 2695. |
Cohesive force of 1st group elements |
| Answer» | |
| 2696. |
Write Dalton Law of pascal pressure class11 |
| Answer» If two or more non reacting gases are kept in a closed container then sum of their partial pressure is equal to net pressure.P=P1+P2+...........where partial pressure=(mole fraction)*net pressure. | |
| 2697. |
Explain bohrs model |
| Answer» | |
| 2698. |
Calculate the volume of 1gm hydrogen at standard temperature and pressure |
| Answer» | |
| 2699. |
How can the production of dihydrogen, obtained from ‘coal gasification’, be increased? |
| Answer» | |
| 2700. |
Define Markovnikovs rule with suitable example.Also write the mechanism of reaction. |
| Answer» Its simpleA reaction with unsymmetrical alkene when attacked by H+X-, The X- attacks the + atom of the alkene asCH3-CH=CH2 on reacting with HCl givesCH3-CH-Cl-CH3<br>I hope it helps you<br>Markovnikovs rule: According to this rule, -ve part of attendum gives to that double bonded c-atom which contain least no. of H-atom.Rxn intermediate- Carbonation | |