MSC SEM 1 PAPER 404 ALL CHE MCQS

🙏WELCOME TO HNGU STUDENT🙏

👉અહિયાં તમને તમામ SUBJECT પ્રમાણે MCQS મળી રહેશે.

👉HNGU STUDENT UNITY અને ઉત્તર ગુજરાત EDUCATION HUB 24*7 તમારી દરેક રીતે મદદ કરવાં તત્પર છે.

-: FOUNDER K.S. :- 

"મારો ઉદ્દેશ માત્ર નિસ્વાર્થ ભાવે સેવા"

PDF DOWNLODE - MCQS પછી એક ક્લિક બટન

આપેલ ત્યાં ક્લિક કરી PDF DOWNLODE કરી લેવી

M.SC. SEM 1

PAPER 404 UNIT 1 MCQS

1) The order of the identity element ‘e’ of any group is…

A. 0

B. 1

C. 2

D. 3

2) The point group of formaldehyde molecule is...

A.C2v

B. D2d

C. C2

D. Cs

3) From an octahedral molecule MA6 (point group OH) a

derivative MA5B is obtained the point group that is

expected for this new molecule is…

A. C5v

B. C4v

C. D4

D. C4

4) The symmetry elements present in p-dichlorobenzene

are…

A. E, C2, 2𝜎v, 𝜎h, i

B. E, C2, 𝜎v, 𝜎h, i

C. E, 3C2, 2𝝈v, 𝝈h, i

D. E, 3C2, 2𝜎v, 2𝜎h, i

5) The point group symmetry of [PtCl4]

2-

is…

A. C2v

B. D4h

C. D2h

D. C4v

6) Which of the following molecules has a S4 symmetry

element ?

A. POCl3

B. SiCl4

C. BF3

D. SO2Cl2

7) An Ax6 molecule belongs to the Oh point group. The

molecule is modified to AxY. The point group changes

to______.

A. D4h

B. D6h

C. C4h

D.C4v

8) A molecule has a 2-fold axis and a mirror plane

perpendicular to that the point group must have a…

A. C2 axis

B. Centre of inversion

C. 𝜎h plane

D. 𝜎v plane

9) The pair of symmetry point groups that are associated

with only polar molecules…

A. C2v , D∞h

B. C3v , D2h

C. D2h , Td

D.C2v , C∞v

10)The symmetry point group of the most stable

geometry of the following molecule is…

Cl (H) C=C=C (H) Cl

A.C2

B. C1

C. C2v

D. C2h

11)The point group of N2O molecule is…

A.C∞v

B. C2v

C. D2d

D. C4v

12)The point group of diborane molecule is…

A. C∞v

B. D2d

C. D2h

D. C2v

13)The molecule with a C2 axis of symmetry among the

following is…

A.BH2Cl

B. CH3Cl

C. NH2Cl

D. HOCl

14)The point group of allenes molecule is…

A. S4

B. S2

C. C3v

D. C∞v

15)The Point group of IF7 Molecule is…

A. D3h

B. D5h

C. C3v

D. D2d 

01. n-fold rotation followed by reflection through mirror plans perpendicular to rotation axis also known

as =_ .

A. Rotation reflection axis

B. Principle axis

C. None

02. Any subset of element which from a group is called as = {. }

A. Trivial group

B. Sub group

C. None

03. Molecule can be described by which type of symmetry element?

A. 04

B. 05

C. 02

04. Which rotation by a particular axis defined as the n- fold rotation axis?

A. 360/n 

B. 180/n

C. 90/n

05. Xef4 is sqare planner what number different c2 axis?

A. 4

B. 3

C.2

06. AA-1 = A-1A= _.

A. E

B.0

C.1

07. A group must contain at least one element, with the unique single element group known as the { }

A. Trivial group

B monoid

C finite group

08. If there are a finite number of element , the group is called a {. }

A. Trivial group

B. Monoid

C finite group

09. Square planner AB4 molecules has which number symmetry operation?.

A. 14

B . 16

C. 10

10. A molecule can have more then one symmetry axis , the one with the highest n is called as {. }.

A. Rotation axis

B .Principle axis

C. None

11. A symmetry plane can also be identified bY its {. }.

A. Cartesian orientation

B. Roe orientation

C.none

12. If plane is perpendicular to the principle rotation axis, it is called. {. }

A. Vertical plane

B. Horizontal plane

C. None

13. If plane is contains the principle rotation axis is called. {. }

A. Vertical plane

B. Horizontal plane

C. None

14. If plane is parallel to the principle rotation axis, but bisects angle between 2 c2 axes , it is

called .{. }

A. Vertical plane

B horizontal plane.

C. Diagonal plane

15. Complaining all the symmetry elements for escliped ethane yields a symmetry group called . {. }

A. D3h

B. D2v

C. C2v

 

PDF DOWNLODE કરવા ઉપર બતાવેલ ICON પર CLICK KARO

TELEGRAM & WHATSAPP UPDATES👇

INSTAGRAM UPDATES 👇

YOUTUBE UPDATE 👇

તમારું કઈ યોગ્ય સૂચન હોય તો તેને whatsapp કરવા વિનંતી .. તેને ધ્યાન માં લેવાશે.

Material મોકલવા માટે અહી કલીક કરો

WHATSAPP KS VAGHELA :- કલીક કરો.

JOB UPDATES મેળવવા માટે :-

HNGU STUDENT UNITY & UTTARGUJARAT_EDUCATION_ CLUB તમારી તમામ મદદ માટે ઉપલબ્ધ છે.

• HNGU RESULT
• HNGU UPDATE
• HNGU EXAM 
• EXAM OLD PAPER
• HNGU EXAM MCQS
• ALL OF HEAR 

THANKS  K.S.