9394949438

[LATEST]$type=sticky$show=home$rm=0$va=0$count=4$va=0




Chemistry Aptitude Quiz

Dear Readers,

IIT JEE exam which consists of JEE Main and JEE Advanced is one of the most important entrance exams for engineering aspirants. The exam is held for candidates who are aspiring to pursue a career in the field of engineering and technical studies. Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything..

Q1. Atomic mass of an element is not necessarily a whole number because
  •  It contains electrons, protons, and neutrons
  •  It exists in allotropic forms
  •  It contains isotopes
  •  Atoms are no longer indivisible
Solution
Part C

Q2.Which of the following arrangements of electrons is mostly likely to be stable?
  •  
  •  
  •  
  •  
Solution
Part A

Q3.  A photon of frequency n causes photoelectric emission from a surface with threshold frequency v_0. The de Broglic wavelength λ of the photoelectron emitted is given as
  •  Δn=h/2mλ
  •  Δn=h/λ
  •  [1/v_0 -1/v]=(mc^2)/h
  •  λ=√(h/(2m Δn))
Solution
Q4.   The total number of unpaired electrons are
  •  1
  •  2
  •  3
  •  4
Solution

(a)
2K, 8L, 9M, and 2N
1s^2 2s^2 2p^6 3s^2 3p^6 3d^1 4s^2
(■(K means n=1,L means n=2 @M means n=3,N means n=4 ))
Structure is 3d^1,4s^2
Atomic number 21
Total number of unpaired d e^-
3d_1=1
Q5.Which of the following is false?
  •  Bracket spectral series for which n_1=4 and n_2=5,6,7,… lies in the infrared region of the electromagnetic radiation
  •  The orbital 3d_(z^2 ) is symmetrical about z-axis
  •  The orbital 3d_xy has no probability of finding electron alongx- and y-axis
  •  The orbital 3d_(x^2-y^2 ) has no probability of finding electron along x- and y-axis
Solution
 

Q6. The energy equivalent to 1 amu is?
  •  931.5 MeV
  •  93.15 MeV
  • 460 MeV
  •  554 MeV
Solution
(a) 1 amu=931.5 MeV

Q7.1 g atom of an α-emitting 〖 _Z X〗^A (half life = 10 hr) was placed in sealed containers, 4.52×10^23. Helium atoms will accumulate in the container after
  •  4.52 hr
  •  
  •  9.40 hr
  •  20.00 hr
Solution
Part D

Q8.The two electrons have the following sets of quantum numbers:
X:3,2,-2,+1/2
Y:3,0,0,+1/2
What is true of the following
  •  X and Y have same energy
  •  X and Y have unequal energy
  •  X and Y represent same electron
  •  None of the statement is correct
Solution
(b)
In X; l=d
In Y, l=s
Energy of d>s


Q9.For a given principal level n=4, the energy of its subshells is of the order
  •  s< d< f< p
  •   s< p< d< f
  •  d< f< p< s
  •  s< p< f< d
Solution
(b)
s< p< d< f


Q10. The unstable nucleus _82^212 Pbdecays with β - particle emission, having a half-life of 10 h. From this it follows that the
  •  I. mass number of the product is 212
  •  II. atomic number of the product is 81
  •  III. fraction of the original isotope remaining after 20 h is 1/4
  • IV. Nucleus formed is stable
Solution
Part B

author image

Written by: AUTHORNAME

AUTHORDESCRIPTION

Want to know more

Please fill in the details below:

INNER POST ADS

Latest IITJEE Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide

Latest NEET Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide

Name

Admissions,1,Alternating Current,60,AP EAMCET 2020,1,Basic Maths,2,BCECE 2020,1,best books for iit jee,2,best coaching institute for iit,1,best coaching institute for iit jee preparation,1,best iit jee coaching delhi,1,best iit jee coaching in delhi,2,best study material for iit jee,4,BITSAT Registration 2020,1,Blog,62,books for jee preparation,1,books recommended by iit toppers,3,Capacitance,3,CBSE,1,CBSE accounts exam,1,CBSE boards,1,CBSE NEET,9,cbse neet 2019,3,CBSE NEET 2020,1,cbse neet nic,1,Centre of Mass,2,Chemistry,58,Class 12 Physics,15,coaching for jee advanced,1,coaching institute for iit jee,2,Collision,2,COMEDK UGET 2020 Application Form,1,COMEDK UGET 2020 Exam Form,1,COMEDK UGET news,1,CUCET 2020,2,Current Electricity,4,CVR college,1,Electromagnetic Induction,3,Electronics,1,Electrostatics,3,Energy,1,Engineering & Medical,1,Fluid Mechanics,4,Gravitation,2,GUJCET 2020 Application Form,1,Heat,4,iit admission,1,iit advanced,1,iit coaching centre,3,iit coaching centre in delhi,2,iit coaching classes,2,iit coaching in delhi,1,iit coaching institute in delhi,1,iit entrance exam,1,iit entrance exam syllabus,2,iit exam pattern,2,iit jee,5,iit jee 2019,3,iit jee advanced,2,iit jee books,3,iit jee coaching,2,iit jee exam,3,iit jee exam 2019,1,iit jee exam pattern,3,iit jee institute,1,iit jee main 2019,2,iit jee mains,3,iit jee mains syllabus,2,iit jee material,1,iit jee online test,3,iit jee practice test,3,iit jee preparation,6,iit jee preparation in delhi,2,iit jee preparation time,1,iit jee preparation tips by toppers,2,iit jee question paper,1,iit jee study material,3,iit jee study materials,2,iit jee syllabus,2,iit jee syllabus 2019,2,iit jee test,3,iit preparation,2,iit preparation books,5,iit preparation time table,2,iit preparation tips,2,iit syllabus,2,iit test series,3,IITJEE,100,IPU CET,1,JEE Advanced,83,jee advanced exam,2,jee advanced exam pattern,1,jee advanced paper,1,JEE Books,1,JEE Coaching Delhi,3,jee exam,3,jee exam 2019,6,JEE Exam Pattern,2,jee exam pattern 2019,1,jee exam preparation,1,JEE Main,85,jee main 2019,4,JEE Main 2020,1,JEE Main 2020 Application Form,2,JEE Main 2020 news,2,JEE Main 2020 Official Answer Key,1,JEE Main 2020 Registration,1,JEE Main 2020 Score,1,JEE Main application form,1,jee main coaching,1,JEE Main eligibility criteria,3,jee main exam,1,jee main exam 2019,3,jee main online question paper,1,jee main online test,3,JEE Main Paper-2 Result,1,jee main registration,2,jee main syllabus,2,JEE mains 2020,1,jee mains question bank,1,jee mains test papers,3,JEE Mock Test,2,jee notes,1,jee past papers,1,JEE Preparation,2,jee preparation in delhi,1,jee preparation material,4,JEE Study Material,1,jee syllabus,6,JEE Syllabus Chemistry,1,JEE Syllabus Maths,1,JEE Syllabus Physics,1,jee test series,3,KCET - 2020,1,Kinematics,1,Latest article,5,Latest Articles,61,Latest News,34,latest news about neet exam,1,Laws of Motion,2,Magnetic Effect of Current,3,Magnetism,3,MHT CET 2020,2,MHT CET 2020 exam schedule,1,Modern Physics,1,NCERT Solutions,15,neet,3,neet 2019,1,neet 2019 eligibility criteria,1,neet 2019 exam date,2,neet 2019 test series,2,NEET 2020,2,NEET 2020 Application Form,1,NEET 2020 Eligibility Criteria,1,NEET 2020 Registration,1,neet application form,1,neet application form 2019 last date,1,Neet Biology Syllabus,1,Neet Books,3,neet eligibility criteria,3,neet exam 2019,7,neet exam application,1,neet exam date,1,neet exam details,1,neet exam pattern,6,neet exam pattern 2019,2,neet examination,1,neet mock test 2019,1,Neet Notes,3,Neet Online Application Form,3,neet online test,2,neet past papers,1,neet physics syllabus,1,neet practice test,2,NEET preparation books,1,neet qualification marks,1,NEET question paper 2019,1,neet question papers,1,neet registration,1,Neet Study Material,3,neet syllabus,6,neet syllabus 2019,5,NEET Syllabus 2020,1,neet syllabus chemistry,1,neet syllabus for biology,1,neet syllabus for physics,1,neet test series,1,neet ug 2019,2,news,5,online study material for iit jee,1,Optical Instruments,1,Physics,110,physics books for iit jee,1,Power,1,Practical Physics,1,Quiz,5,Ray Optics,1,Rotational Motion,3,SHM,3,Simple Harmonic Motion,3,study materials for iit jee,1,Study Notes,110,study notes for iit jee,1,Thermodynamics,4,TS EAMCET Notification,2,Units and Dimensions,1,UPSEE 2020,1,UPSEE 2020 Application Form,2,UPSEE EXAM,1,Vectors,2,VITEE Application form,1,Wave Motion,3,Wave Optics,1,WBJEE 2020 Admit Card,1,WBJEE 2020 Answer Key,1,Work,1,
ltr
item
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET, IIT JEE COACHING INSTITUTE: STRUCTURE OF ATOM Quiz-8
STRUCTURE OF ATOM Quiz-8
https://1.bp.blogspot.com/-d3epzeFCg4k/YOgNLleEerI/AAAAAAAA38s/KKcHhS4u2TkFUBtJClsO4u5YgMbDNWZcgCLcBGAsYHQ/s960/Quiz%2BImage%2B20%2B%252832%2529.jpg
https://1.bp.blogspot.com/-d3epzeFCg4k/YOgNLleEerI/AAAAAAAA38s/KKcHhS4u2TkFUBtJClsO4u5YgMbDNWZcgCLcBGAsYHQ/s72-c/Quiz%2BImage%2B20%2B%252832%2529.jpg
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET, IIT JEE COACHING INSTITUTE
https://www.cleariitmedical.com/2021/07/structure-of-atom-quiz-8.html
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/2021/07/structure-of-atom-quiz-8.html
true
7783647550433378923
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy