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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.
| 451. |
Calculate the volume of stt 1.5 mole of oxygen |
| Answer» Volume of oxygen at STP will be = 1.5*22.4 litre..ok | |
| 452. |
1 . What is the use of Scientific Notation in chemistry |
| Answer» Scientific notation is a way to express very big and very small numbers with exponents as a power of ten. It is also sometimes called exponential notation. | |
| 453. |
Radient energy absorbed in packets discontinoiusly is called quantum??? |
| Answer» Yes | |
| 454. |
Good morning gyessssss |
| Answer» Gd morning<br>Gudmrning | |
| 455. |
Planks constant value |
| Answer» 6.626*10^-34JS<br>6.626x10–³⁴kgm²/s<br>6.626*10^-34 | |
| 456. |
Calculate the no. Of molecules and atoms in 684gm of C12H22O11 |
| Answer» 5<br>2 molecules<br>.5 molecule | |
| 457. |
How do rates of evaporation and condensation change initially |
| Answer» | |
| 458. |
Class 9 water is liquid at room temperature |
| Answer» Ya bro water is liquid at room temperature | |
| 459. |
What is the full form of CPG |
| Answer» Capillaries blood gases | |
| 460. |
Why do you not fill the cylinder of CPG |
| Answer» It is unsafe and expensive<br>Because petroleum can\'t be use in domestic kitchen use | |
| 461. |
Another name of benzene |
| Answer» Ya it\'s hexene<br>What is atom<br>Haxene | |
| 462. |
What is electronic configration of copper |
| Answer» Raj this answer is wrong that u have give because it is not following octave rule it has 17 electron in its last orbit which is not possible<br>1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^10<br>2,8,17 | |
| 463. |
एवोगेड्रो की संख्या की व्याख्या करें |
| Answer» 6.023multiply by10²³ mol-¹<br>6.023× 10^23<br>6×10 is to power 23 | |
| 464. |
Calculated the molar mass of CH4 |
| Answer» Mass number of Carbon (C) = 12.044uMass number of Hydrogen (H) = 1.008uThus,mass number of CH4 = (12.044 + 4 ×1.008) = 16.076uMolar mass of CH4 is the mass number of CH4 expressed in grams i.e.16.076 grams or 16 g.<br>16g/mole<br>Calculate the molar mass of CH4 | |
| 465. |
Is 1.9927 same as 2?? |
| Answer» Yup<br>Yeah<br>Yes...but after rounding off | |
| 466. |
What are the examples of 9 types of solution |
| Answer» | |
| 467. |
Why the does not make a wave when it hit with hockey |
| Answer» Couz mass is inversely proportional to wavelength of an object abd as its mass increases it\'s wave motion becomes negligible | |
| 468. |
Calculate the mass per cent of different elements present in sodium sulphate. |
| Answer» | |
| 469. |
Gyus how many of u r nervous about the 10th board results |
| Answer» Ha bhai bas smart study kar raha 10th ki starting se matlab ki aap apni neend par kabu paa lo yani roz subha 3.30 se 4.00 k bich me utkhar panda chiye or bas jo cheej padoge wo yaad ho jayegi<br>Aap to 96.24 le gye bhai<br>Very very much | |
| 470. |
Hi...hlo...everyone... |
| Answer» Hlo<br>Hi?????<br>ya hii... | |
| 471. |
Sorry..............................................please forgive me dhama Yaar.. ?????? |
| Answer» Sorry ....kyu | |
| 472. |
Result kaise aaega |
| Answer» Mujhe lagta h ki meri 90% se 96% k bich me ban jayegi<br>Result aayega katai jeher phir sab milkar dha denge kahar????<br>कतई जहर result आएगा मेरा तो | |
| 473. |
Conversion |
| Answer» Kiska | |
| 474. |
How many gm required of i2 to form one mole HI |
| Answer» Atomic mass of \'Iodine\' = 127 a.m.u.To form 1 mole of \'HI\' we need 1 mole of \'iodine atoms\' is required.Mass of iodine required = molar mass iodine = 127 grams | |
| 475. |
Calculate the total no of neutrons in 7mg of C^14 |
| Answer» Mass of 1 atom of C-14 = 14 a.m.u.Mass of 1 mole of C-14 = 14 grams<hr />(using unitary method)14 grams = 1 moleTherefore, 7 grams = 0.5 mole<hr />1 atom of C-14 has 8 neutrons0.5 mole of C-14 has\xa08 * NA\xa0=\xa08 * 6.022 * 1023\xa0=\xa04.8176 * 1024\xa0 neutrons | |
| 476. |
What is gram atomic mass? |
| Answer» Gram atomic mass\xa0is the\xa0mass, in\xa0grams, of one mole of\xa0atoms\xa0in a monatomic chemical element. It is numerically equal to the relative\xa0atomic mass\xa0(or\xa0atomic weight) in\xa0grams. The\xa0atomic mass\xa0of an element expressed in\xa0grams\xa0is calledgram atomic mass. For example oxygen is 16\xa0grams. | |
| 477. |
When cbse will declare the result of class 10 |
| Answer» On 5 may<br>Between 13-17 may | |
| 478. |
How many orbitals are possible with the quantum no. n=3,L=2,m = +2 |
| Answer» | |
| 479. |
Mean free path of gas molecule at constant temperature is inversely proportional to |
| Answer» | |
| 480. |
Volume of co2 obtained at stp by the complete decomposition of 9.85 g Na2Co2 is |
| Answer» | |
| 481. |
Which of the following is the strongest oxidising agent.? |
| Answer» Chlorine<br>Fluorine<br>Zn | |
| 482. |
Molecular mass of sodium acetate |
| Answer» 83g/mole<br>82.0343 g/mol | |
| 483. |
Plz someone share few numericals of mole concept and empirical and molecular formula. |
| Answer» | |
| 484. |
Explain depression in freezing point |
| Answer» | |
| 485. |
What is the difference between minerals and ores ? |
| Answer» Minerals are naturally occurring inorganic solids with a crystalline structure and a definite range of chemical formula. Ores are concentrations of minerals in rock that are high enough to be economically extracted for use. | |
| 486. |
describe mole concept |
| Answer» | |
| 487. |
Calculate total number of protons in 78gm of methane |
| Answer» | |
| 488. |
Difference between molarity and molality. |
| Answer» moles per litre is called molarity moles per kg called molality<br>Molarity is the no. Of moles of solute per litre of soln. Molality is no. Of moles of solute per kg of solvent | |
| 489. |
Order of magnitude |
| Answer» | |
| 490. |
Please tell me which is the best iit coaching institute in hisar , haryana with affordable fees |
| Answer» Don\'t know.. Bt I think there is nothing special in Haryana for IIT coaching... U should take some good State for that...<br>Someone has answered but where is the answer | |
| 491. |
The species which has its fifth ionisation potential equal to 340 V is |
| Answer» | |
| 492. |
What is the atomic number of calicium |
| Answer» 20<br>20 | |
| 493. |
Which is more electron withdrawing - hydrogen ion or phenyl ring |
| Answer» phenyl ring<br>So formic acid should be weaker acid than benzoic acid<br>Phenyl ring | |
| 494. |
How many type of chemistry are there |
| Answer» 4 | |
| 495. |
Explain saytzeft\'s rule with example |
| Answer» acco to satzeff rule more alkylted alkane can be formed as product<br>According to Saytzeff rule "In dehydrohalogenation reactions, the preferred product is that alkene which has the greater number of alkyl groups attached to the doubly bonded carbon atoms."For example: The dehydrohalogenation of 2-bromobutane yields two products 1-butene and 2-butene. Out of these 2-butene is the major product (80%) as it is more highly substituted and it is more stable. | |
| 496. |
20 points on importance of chemistry in our daily life |
| Answer» N2o is known as laughing gas<br>Which element is known as laughing gas<br>Artificial rain is due which element | |
| 497. |
1u=1.67•10 |
| Answer» | |
| 498. |
Find out the mole fraction of NaOH,Na2CO3,NaHCO3GIVEN WEIGHTS---- 20g ,53g ,43g |
| Answer» | |
| 499. |
Nucleophiles |
| Answer» Aap kon se class me ho??<br>It is a specie that donate the elcetron pair in a chemical equation | |
| 500. |
Write the formula of water gas |
| Answer» H2o is not the formula of water gas but it is formula of water...only....the right formula for water gas is CO+H2O<br>H2o | |