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.
| 2401. |
What is effusio |
| Answer» Effusion is also the ability of a gas to escape or travel through a small hole with a small aperture and from a place of high concentration to low concentration.<br>OKAY?..AND ALL THE BEST?? .... GUD NYTT?<br>Effusion** | |
| 2402. |
How many molecules in 16 g of methane |
| Answer» Molecular of methane=CH4Atomic mass of carbon(C) =12g/moleAtomic mass of hydrogen (H)= 1g/moleMolecular mass of CH4=( 12 +4×1)g/mole =16 g/moleNo. Of molecule =(16/16) ×6.023×10square23 Ans÷ 6.023 ×10 square 23<br>molecular formula of methane = CH4we know,atomic mass of C = 12 g/molatomic mass of H = 1 g/molso,molecular mass of CH4 =( 12 + 4 × 1 ) g/mol = 16 g/molalso we know,no of molecule = {given weight /molecular weight } × 6.023 × 10²³here,given weight = 16 gmolecular weight = 16 g/molso,no of molecules = ( 16/16) × 6.023 × 10²³= 6.023 × 10²³ | |
| 2403. |
Covalent bond? |
| Answer» The Combining of two atoms are called covalent bonds<br>Nice to meet you both<br>???bbye... baad me aati hu? | |
| 2404. |
Electronic configuration of O2? |
| Answer» Hn shayad ?jyada padh rhe h sbb?<br>Ruko msg krti hu???<br>Baat nhi hue h bhot time se ?Diwali pe hi hue thi?.. Us time achhi thi ? | |
| 2405. |
Enthalpy kya hoti h |
| Answer» Enthalpy is the measurement of energy in a thermodynamic system. The quantity of enthalpy equals to the total content of heat of a system, equivalent to the system’s internal energy plus the product of volume and pressure.<br>Enthalpy means energy | |
| 2406. |
Tell me prodecure of Pratically detection and confirmation of cation and anion |
| Answer» | |
| 2407. |
Explain gay lussac\'s law of gaseous volume |
| Answer» Gay lussac\'s law of gaseous volume states that pressure of a given mass varies directly with tempratue.<br>Kaise ho aap | |
| 2408. |
Find number of unpaird electrons in Fe and Cr |
| Answer» | |
| 2409. |
32g o2 |
| Answer» Given mass/ molar mass = 32/32 = 1 mole n × Na × atomicity 2× 6.022×10^23×1 12.044×10^23 | |
| 2410. |
What is the meaning of c/m? |
| Answer» | |
| 2411. |
Number of moles present in 2.5mL of NH3 at STP |
| Answer» 0.000116<br>1 | |
| 2412. |
Why the electron affinity of nitrogen atom is positive while of oxygen atom is negative |
| Answer» | |
| 2413. |
Write the iupac name for the following |
| Answer» Write down the whole question | |
| 2414. |
Electronic configuration of cr-1 and sc+1 |
| Answer» Electronic configuration of sodium | |
| 2415. |
Why lone pairs doesn\'t affect shape of molecule\'s structure? |
| Answer» | |
| 2416. |
What is resonance...? |
| Answer» Delocalisation of π electrons is resonance | |
| 2417. |
What is prothallus |
| Answer» | |
| 2418. |
Write alpha sceterring |
| Answer» | |
| 2419. |
Calculate total number of electron present in one mole ch4 |
| Answer» 6.023×10^-22 | |
| 2420. |
Chemistry chapter 4 notes |
| Answer» | |
| 2421. |
(iv) Si*O_{2} P_{2}*O_{5} S*O_{3} and Cl, O_{4} (acidic nature) |
| Answer» Hii | |
| 2422. |
Si unit of velocity |
| Answer» m/s<br>V<br>m/s | |
| 2423. |
Total number of electrons present in 4.4g oxalate ion |
| Answer» | |
| 2424. |
1 mole |
| Answer» 1mole=(6.023)10*23 | |
| 2425. |
Write all electronic configuration |
| Answer» From 1 to 30 elements? | |
| 2426. |
Why are axial bonds are longer as compared to equatorial bonds? |
| Answer» The axial bonds are longer than equatorial bonds because of greater repulsion from equatorial bonds. So axial bonds are nearer to equatorial bonds and this causes greater repulsion resulting in elongation of bond lengths. | |
| 2427. |
Chapter 8 notes |
| Answer» | |
| 2428. |
Determine the empirical formula of an oxide of iron which has 69.9% iron and 30.1% oxygen by mass |
| Answer» Empirical formula:- Fe𝟸O𝟹 | |
| 2429. |
What is wander waal radius?? |
| Answer» Van Der Waal Radius is half of the closest distance between two atoms that aren\'t bonded or within the same molecule. | |
| 2430. |
How many gram are contained in 2 gram atom of Na |
| Answer» | |
| 2431. |
Write IUPAC name CH3 - CH_ch3 - CH- CH3 |
| Answer» Define limiting reagent | |
| 2432. |
Types of solution |
| Answer» | |
| 2433. |
The number of moles of cacl2 needed to react with excess of agno3 to produce 4.31gram of agcl |
| Answer» | |
| 2434. |
Cemical baunding |
| Answer» | |
| 2435. |
Define the term mole . calculate. |
| Answer» 1 mole is equal to 6.022×10²³<br>1 mol =22.4 liter<br>Mole is a Unit Of Amount of Substance used for measuring of Molecules,Atoms,ions, etc 1 mol = 6.022 × 10²³ | |
| 2436. |
Derive the relationship between atm and pa |
| Answer» 1 atm = 1.023 × 10^5 pa | |
| 2437. |
What is the value of 1 torr in SI system? |
| Answer» The torr (symbol: Torr) is a unit of pressure based on an absolute scale, defined as exactly 1760 of a standard atmosphere (101325 Pa). Thus one torr is exactly 101325760 pascals (≈ 133.32 Pa). | |
| 2438. |
What is the number of significant digits in 1.00×10⁶ |
| Answer» 3 significant figuresBecause, the zeroes right to the decimal are significant.<br>3<br>1<br>1 | |
| 2439. |
What is the scientific notation of 0.000762? |
| Answer» 7.62 × 10^-4 | |
| 2440. |
What is the number of significant figures in 0.00650 |
| Answer» 3<br>3 | |
| 2441. |
Express 1 atmospheric pressure in SI unit |
| Answer» 1 atm=101325 PaSI unit of pressure is Pascal. | |
| 2442. |
Write the scientific notation for 0.000518? |
| Answer» 5.18 × 10^-4 | |
| 2443. |
Express 98 degree F temperature in Kelvin scale . |
| Answer» In celcius = 36.667 In kelvin = 309.667 | |
| 2444. |
What is the scientific notation for 0.00262? |
| Answer» 2.62*10^–3 | |
| 2445. |
What are the name and the symbol of the S.I unit of temperature? |
| Answer» Kelvin (K) | |
| 2446. |
Notes of ch structure of atom |
| Answer» | |
| 2447. |
Types of atomic radii |
| Answer» | |
| 2448. |
Cation |
| Answer» The ion containing negative charge or the atom which recieved electrons from other atoms and contains negative charge is called a cation.... | |
| 2449. |
Calculate the volume of 34 g of ammonia under standard conditions |
| Answer» And iam complete my work and send the photos or work<br>Given mass of NH3 =34g Molar mass of NH3 = 11*2 +3*1=25g No of mole = given mass of NH3/molar mass of NH3 =34/25=1.36mol Let the volume of NH 3=x No of mole =given volume/22.4L 1.36=x/22.4 X=1.36*22.4=30.464L\xa0I hope it helps u | |
| 2450. |
INTRODUCTION TO ANAIYTICAL CHEMISTRY |
| Answer» Analytical chemistry is\xa0the science of obtaining, processing, and communicating information about the composition and structure of matter. In other words, it is the art and science of determining what matter is and how much of it exists. | |