AadharGovernment SchemenewsServicesStudy

Class 12th Chemistry Objective model paper 2022

Class 12th Chemistry Objective , intermediate model paper, Chemistry Objective Answer Set, Bihar Board Class 12th


BSEB 12TH MODEL OBJECTIVE ALL QUESTION AND ANSWER SET

12TH MODEL SET PAPER 2021 CLICK HERE
10TH MODEL SET PAPER 2021 CLICK HERE

1 . The number of particles in a simple cubic per unit cell is :

ज्वाइन करे टेलीग्राम ग्रुप

One
two
three
four

ANSWER:-One

2. The number of particles in a face-centered cubic (fcc) per unit cell is

WhatsApp Group (Join Now) Join Now
Telegram Group (Join Now) Join Now

one
two
three
Four

ANSWER:-Four

3. The number of particles in a body-centered cubic (bcc) per unit cell IS :

one
Two
Three
Four

WhatsApp Group (Join Now) Join Now
Telegram Group (Join Now) Join Now
ANSWER:-Two

4. Graphite is an example of

  • Ionic Solid
  • Molecular Solid
  • Covalent Solid
  • Metallic Solid
ANSWER:-Covalent Solid

5. Possible Co-ordination number of Cation of tetrahedral structural Arrangement is:

  • 1
  • 2
  • 3
  • 4
ANSWER:-4

6. The molecularity of a reaction cannot be :

  • Zero
  • One
  • Two
  • Three
ANSWER:-Zero

7. Cuprite is an ore of :

  • Zn
  • Cu
  • Ag
  • Fe
ANSWER:-Cu

8. Calamine is an ore of :

WhatsApp Group (Join Now) Join Now
Telegram Group (Join Now) Join Now
  • Cu
  • Fe
  • Al
  • Zn
ANSWER:-Zn

9. Bauxite is an ore of :

  • Al
  • Fe
  • Cu
  • Zn
ANSWER:-Al

12. Sulphide ores are generally concentrated by :

  • Gravity separation method
  • Magnetic separation method
  • Froth floatation process
  • None of these
ANSWER:- Froth floatation process


11. Haematite is an ore of :

  • Al
  • Fe
  • Cu
  • Zn
ANSWER:-Fe

12. Unit Of rate constant for Second-order reaction, K is :

ज्वाइन करे टेलीग्राम ग्रुप

  • s⁻¹
  • mol⁻¹ L s⁻¹
  • mol⁻² L² s⁻¹
  • mol L⁻¹ s⁻¹
ANSWER:-mol⁻¹ L s⁻¹

13. Unit Of rate constant for First-order reaction, K is :

WhatsApp Group (Join Now) Join Now
Telegram Group (Join Now) Join Now
  • s⁻¹
  • mol⁻¹ L s⁻¹
  • mol⁻² L² s⁻¹
  • mol L⁻¹ s⁻1
ANSWER:-s⁻¹

14. Unit Of rate constant for third-order reaction, K is :

  • s⁻¹
  • mol⁻¹ L s⁻¹
  • mol⁻² L² s⁻¹
  • mol L⁻¹ s⁻¹
ANSWER:-mol⁻² L² s⁻¹

15. When nitroethane is treated with Li Al H4 the product formed is :

  • Methyl amine
  • Ethyl amine
  • Ethane
  • Acetamide
ANSWER:- Ethyl amine

16. Aldehyde and ketone can be distinguished by :

  • Tollen’s reagent
  • LiAIH4
  • HCN
  • None of these
ANSWER:- Tollen’s reagent

17. Among the halogen acids the one which is weakest is :

  • HBr
  • HI
  • HF
  • HCI
ANSWER:-HF

18. Which of the following is artificial sweetening agent :

  • Aspartame
  • Seconal
  • Aspirin
  • Sodium benzoate
ANSWER:-Aspartame

19. Acid chloride is reduced to aldehyde by :

WhatsApp Group (Join Now) Join Now
Telegram Group (Join Now) Join Now
  • wurtz reaction
  • Fittig reaciton
  • Rosenmund reduction
  • None of these
ANSWER:-Rosenmund reduction

20. Tollen’s reagent is:

  • Mixture of CuSO4 and NaOH
  • A solution of copper sulphate, sodium citrate and sodium carbonate
  • Ammonical silver nitrate solution
  • None of these
ANSWER:-A solution of copper sulphate, sodium citrate and sodium carbonate


21. Phenol is less acidic than:

  • Ehanol
  • Methanol
  • p-Nitrophenol
  • p- methylphenol
ANSWER:- p-Nitrophenol

22. The hybridization of Xe F2 Is :

  • sp³d²
  • sp³d
  • sp³
  • sp³d³
ANSWER:-sp³d

23. The hybridisation of Xe F4 Is :

sp³d²

s³d
sp³
sp³d³

ANSWER:-. sp³d²

24. Which one of the following is not a protein:

  • Nail
  • DNA
  • Hair
  • Wool
ANSWER:- DNA

25. Enzymes are:

  • Carbohydrates
  • Vitamins
  • Proteins
  • None of these
ANSWER:- Proteins

26. Vitamin A is Called

  • Retinol
  • Ascorbic acid
  • calciferol
  • Tocoferol
ANSWER:- Retinol

27. which of the Following is not found in RNA

  • Uracil
  • Adenine
  • Ammonium Acetate
  • Guanineetate
ANSWER:-Ammonium Ac

28. PVC is a

  • Addition polymer
  • Condensation polymer
  • copolymer
  • None of these
ANSWER:-Addition polymer

29. Phenol is used as :

  • Antiseptic
  • Disinfectants
  • Both a & b
  • None
ANSWER:-Both a & b

30. Antipyretics is a :

Quinone

Paracetamol

Luminal

None

ANSWER:- Paracetamol

 


IMPORTEND POST LINK
 
1. 📔 Bihar board 12th result 2021 | BSEB Result 2021 l check high School result 2021 । Get intermediate result 2021  
2. 📔12th Hindi 50 Marks Dohe Chapter Question | कक्षा 12 हिंदी 50 मार्क्स दोहे चैप्टर का महत्वपूर्ण प्रशन 2021 ka Question  
3. 📔CBSE Syllabus for Class 12 for Academic Year 2020-2021 || allsarkariexams  
4.
Bihar board class 12th exam 2021 Physics answer key | 12th physics objective answer key | Bihar board physics objective answer set 2021
 
5.
How to download 12th class model set || BSEB class 12th model set 2020 officially Bihar board
 

Bihar Board 12th Chemistry Objective Answer Key 2021

In Bihar Board Intermediate and intermediate Exams, the Bihar Board has launched a new objective type scheme. Now, for each subject, it conducts both an Objective and a Subjective Paper. It currently has a Chemistry Objective Paper from the Bihar Board in which all Bihar Chemistry Objective Answer Key 2021 will be requested. These BSEB Inter Chemistry Exam 2021 Questions were asked from in between the Chapters. Let’s check the Bihar Board 12th Chemistry Objective Answer 2021 February. Also, we have given the link of Bihar Board Chemistry Answer Key 2021 Pdf.


बिहार बोर्ड केमिस्ट्री का सही अंसार सीट आपको यहाँ से मिलेगा 04/02/2021 को तो हमारे टीम के दोआरा आपको सबसे पहले देने का कोर्सिस रहेगा तो आपको बस एक कम करना लेफ्ट साईड में जो घंटी दिख रहा है उससे Allow कर लीजिये ताकि कल आने वाला सबसे पहले आपको मिले धन्वाद आपका दिन शुभ आप अच्छे से परीक्षा दे अच्छे नंबर से पास हो हम भगबान से आपके लिए दुआ मांगेंगे !!

Class 12th Chemistry Objective ,  intermediate model paper


Bihar Board Chemistry Objective Answer Key 2021

The examination is carried in the objective type so that students read each and every detail in chapters. Objective Type Papers contribute to gaining good subject knowledge. The examination is now closed. Check below BSEB Chemistry Objective Answer 2021. And for Bihar Board Chemistry Objective, you all have a single query Answer Key 2021 i.e. Type of objective paper. Exam participants can cross-check their answers here with the Bihar Board Chemistry Answer Key 2021 exam date Feb 2021.

Class 12th Chemistry Objective, Class 12th Chemistry Objective , Class 12th Chemistry Objective 


Bihar Board 12th Chemistry Answer Key 2021 Page 1:

Bihar Board Answer Key Page 2:


BSEB Chemistry Answer Key 2021

Chemistry is a good subject for good mark scoring. Whatever your BSEB Exam performance will be, you don’t have to wait for the result now. Check the answer key for your Bihar board here. In Bihar Board Answer Key 2021, all questions are answered sequentially. Questions based on multiple choices were asked in various sets of papers. Here you will get all set wise Bihar SEB 12th Chemistry MCQ Answer Key 2021.



BSEB Exam Key Page 3:

Bihar Board official answer key will be released within this week.

Candidates Make Sure to be in touch with the Official Website.

Bihar Board Chemistry Answer Key is Uploaded in the Image Here.

If Students have any doubt over BSEB Intermediate Chemistry Answer 2021 for 1 to 35 Questions they can mention it in the comment box.


Answer Page 4:

Question Paper Key Page 5:

Exam Key Page 6:

Answer Sheet Page 7:


Bihar Board 12th Chemistry Objective Answer 2021 Question Paper

Answer Page 8:

Answer Key Page 9:

नोट:- बिहार बोर्ड इंटरमीडिएट के केमिस्ट्री आंसर कुंजी में किसी बे प्रकार की त्रुटि या बदलाव से सम्बंधित जानकारी आप हमसे कमेंट बॉक्स के माध्यम से साझा कर सकते हैं।


How to Download Bihar Board 12th Chemistry Answer Key 2021:

  • Open the Official Website of BSEB i.e. www.biharboard.ac.in.
  • Check Bihar Board Chemistry Objective Answer Key 2021 Pdf link.
  • Choose Your Paper Code.
  • Click on the Link and Pdf will Start Downloading Itself.
  • Check Your Answers for Each Question.
  • intermediate model paper, intermediate model paper, intermediate model paper, intermediate model paper, intermediate model paper, Chemistry Objective Answer Set, Chemistry Objective Answer Set, Chemistry Objective Answer Set

IMPORTEND POST LINK
1. 📔 Bihar board 12th result 2021 | BSEB Result 2021 l check high School result 2021 । Get intermediate result 2021
2. 📔CBSE Syllabus for Class 12 for Academic Year 2020-2021 || allsarkariexams

FAQ Bihar Board Class 12th Chemistry Objective Answer Set

How to Download Bihar Board 12th Chemistry Answer Key 2021:

Open the Official Website of BSEB i.e. www.biharboard.ac.in.
Check Bihar Board Chemistry Objective Answer Key 2021 Pdf link.
Choose Your Paper Code.
Click on the Link and Pdf will Start Downloading Itself.
Check Your Answers for Each Question.

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button

Adblock Detected

Please consider supporting us by disabling your ad blocker