Central Board of Secondary Education [CBSE] Complaints & Reviews

Wrong question in science test paper of class 10
Respected sir/ma'am

In class 10 science paper code no. 31/2 set-2, q.10 (Part 2) students asked to identify a salt used in making 'tasty and crispy pakoras' having ph 14. However no salt has a ph of 14.
This caused a lot of confusion and misunderstanding among students. I, therefore request you to look into the matter and grant adequate marks to the students who have attempted the part

Thanking you
Abhijeet gupta (X)

Sir my complaint is that, in my science board question paper class 10 2018, there is a mistake in the question. The question is that: the ph of the salt used to prepare salty and crispy pakoras is 14. What is the name of the salt and write it's uses. Sir all are telling that the answer is nahco3 but the ph of nahco3 is just 9. So, sir i hope you will surely see my complaint. Thank you sir

Please refer to the question in which the ph of the salt was given 14 which is used to make tasty pakoras. A higher ph can cause damage to the body and hence it is not fit for eating purposes. The salt would be sodium hydrogen carbonate i. E. Baking soda but it's ph is 9 and the ph of sodium hydroxide is 14 which is used for making soaps. Due to confusion many of the students didn't even attempted the question. Do look into it.

The date of social science examination for class 10 is unjust.
Some language students get upto 6 days whereas some gets just 1.
Social is a vast subject and there's a lot to remember. Unlike maths or science, we can't just study it once. It has to be revised the day before atleast once. 1 day is inadequate for even flipping through the pages.
This is surely going to affect many students marks. The board has to be fair to all students. Not just hindi or urdu.

Please consider the essue. It's a matter of marks. I know marks aren't very important factors in life but our parents expect a lot

Thanking you
Yours sincerely
Anu

Question no. 7 of section A was not proper
as it has been asked that name the salt used in pakoras to make it crispy and has ph 14. But ph14 is highly basic in nature which can harm our body, so it can't be used in pakoras.So the question should be like this, name the salt used in pakoras to make it crispy and have ph 8.0 or 8.5 and its answer is baking powder.And baking powder or baking soda have ph 8.0 or 8.5.

This is regarding a mistake in the recently held cbse class 10 science board (Held on 16/3/18). Here are the details as per the question paper :
Series tym
Set 2
Code 31/2
In the question paper, qn 10 in which a choice was provided is as follows :

The ph of a salt to make tasty and crispy pakoras is 14. Identify the salt and write a chemical eqn. For its formation. List it's two uses.

Now this question is wrong as the ph of a edible salt which is used in cooking can never be 14 as ph 14 indicates a highly basic compound which can be harmful to humans as it is highly dangerous and not at all usable for cooking as it is highly basic.
Also the compound which has ph level 14 is sodium hydroxide (Naoh), which is not the answer in this case and the question is therefore highly misleading and incorrect to a great extent as it provides incorrect facts to a student.

The correct answer should be baking soda (Nahco3) which has a ph value of around 8.6 and is used to make baking powder which is used in making pakoras tasty not crispy instead it makes it fluffy. This is clearly another piece of misleading information for the students.

So with 2 major mistakes, the question is absolutely incorrect and misleads the students to a wrong answer as incorrect factual information has been provided from the cbse's side.

As a student who attempted the paper i was mislead due the incorrect information given regarding the question and demand with all my right that those who have attempted this part of the particular question be awarded with marks for just the attempt as this is a blunder from cbse's side as it is a clear cut mistake in the factual information provided to a student via the question paper for which cbse should take appropriate action and do justice to the students.

I hope that just like the decision for the english communicative paper in which there was a mistake, here too the decision is in the favour of the students.

Hoping that cbse will do justice to the students and award marks for attempting this particular part of this question.

Keeping faith is the prestigious and honourable institution that cbse is i hope the decision favours the students as i am one and understand the severe importance of the board exams and each mark.

Lastly i would like to remind once again

*all students that have attempted the particular part of this particular question be awarded full marks for attempting it as the question is wrong *

Regards
Class 10 student

I am student of class 10. There's a mistake in question paper of class 10 cbse board science exam dates on 16 march 2018. The question was that it was asking about the name of the salt which has ph level of 14 which is used to make pakoras. But there is no salt of ph level 14 only naoh is a salt which is a base and not edible. However, baking soda is used but it's ph level is 8.1. Therefore, this question was wrong and they should not suffer because of cbse mistake. So, students should be given grace marks for attempting this question.

I am student of class 10. There's a mistake in question paper of class 10 cbse board science exam dates on 16 march 2018. The question was that it was asking about the name of the salt which has ph level of 14 which is used to make pakoras. But there is no salt of ph level 14 only naoh is a salt which is a base and not edible. However, baking soda is used but it's ph level is 8.1. Therefore, this question was wrong and they should not suffer because of cbse mistake. So, students should be given grace marks for attempting this question.

I am a student in class 10. I want to request you to give grace marks in one subject if the passes in other four subject. If he / she gets passing marks in four subject then can you increase 5 to 6 marks. This can help many students. Or can you give 1 marks for attempting a question. No matter it is wrong or right be cause we are the first batch to write board after many years.

Please i request you to take actions as fast as possible

Sir/ma’am
Class 10 got just 3 days to prepare for science exam 2018. Sir despite of knowing various details beyond our syllabus we are not satisfied with our science paper. Sir i want to become a doctor and have scored highest marks in my science pre board.
Sir /ma’am please take necessary action as 3 days were not sufficient to prepare ourselves nicely.
Sir we are the first batch please sir provide some relaxation. Please sir / ma’am acknowledge our problem.
It’s a matter of our career sir and i have studied day and night for this exam even during my entire summer vacations i didn’t relax myself.

In science paper of class 10 dated 16 march 2018. There was one question asking about the name of salt which is used to make pakoras which has ph of 14. But there is no salt of ph 14. Only naoh has ph of 14 which is base and moreover it is not edible. However baking soda is used but it's ph is 8.1 not 14. Therefore this question was wrong and student should not suffer because of cbse mistake

The question about salt in the 10th sci paper was wrong the ph can not be 14 i request cbse to provide 3 marks for that q. To all who have attempted that question! I wasted my 20 minutes thinking my answer please do provide marks for the wrong printing! The science exam held on 16th march had a question about edible salt and the ph was given as 14 which is wrong and was confusing i request cbse to look after the matter asap!

Sir /mam i want to say that our english question paper had some mistake as according to set 2 question no. 1 that was unseen passage had some problem, as question no. 1.3 was wrong. The para no. Were not given correctly. There were no such words in the given para which means the same. So plz look after it because it is your mistake.
Thank you
Ankur joshi
Student class 10

Question number 14 in set c was wrong a ph of edible salt cannot be 14 that pakoras question was completely wrong... I hope you will provide marks if not this is not acceptable. It should be your responsibility if the question is wrong. Plz resolve this question. I[censored] consider ncert textbook as prescribed by you there is no salt of ph 14
I hope you will resolve this issue

Regards
Student of grade x

In question 7 (Optional question) of set-1 class 10 science paper on 16 march 2018,
Question was - the ph of salt used for making pakodas is "14". Identify the salt?
As per ncert the salt used is baking soda which has ph of 8.5, but in the question ph is given 14 which is of sodium hydroxide.
Hence plz have a look at the question carefully,
Thank you,
Divij katyal
Dav public school sector 14 gurugram

In science theory paper held on 16 march 2018, in set-1 question no. 12 was printed wrong. We were asked to join three 9 ohm resistors in such a way that equivalent resistance is (I) 13.5 ohm and (Ii) 6 ohm. But equivalent resistance cant be 6 ohm. Instead it should be 3 ohm. Plz provide marks to those students who have attempted that question and have written right answer.

The question states that the ph of the salt used to make tasty and crispy pakoras is 14. This therefore was a wrong question as a substance with ph 14 is not edible.
This was question number 10 in set 2 of the science question paper.
So, we request you to take the required action as it was not an answerable question. It would be unfair if we loose our marks for the same.

My paper was held on 16 march 2018 the question 10 asked the salt used for making pakoras and ph was given 14 it is contradiction as naoh have a ph of 14 but the cbse wanted nahco3 the question was wrong as the baking powder is used in making pakoras not baking soda as it's a mild base plz look after this we should get full mark in the question as this not our fault this a printing mistake plz look after this

A concern ed student
Yours sincerely

Today was are science test. My question paper set is 2 and code no. Is 31/2. There was a wrong question in section a. Question no. 10 the 'or' question in which we were asked to identify a salt added in pakoras to make it tasty and crispy. The answer to this should have been baking soda but further the question added that the ph of the salt is 14. Baking soda is a mild base with it's ph 8. Thus it's not possible that the answer to the question is baking soda. Many students have written caustic soda as answer because its ph is 14. Further the question asked about the formation and applications of the salt, making it a 3 marker question. Sir i would like to request you to please take note of this and make sure that students should not be disadvantaged because of this error. I humbly request you to urgently take suitable action. Thank you

Referring to the question no. 10 of science exam it said that you a salt of ph of 14 is used to make pakoras crispier the question is wrong as no salt can have a ph of 14 also many people are referring to the answer being nahco3 which is also wrong as neither it is a base nor it has a ph of 14 and also it is used to provide fluffyness all the students who have attempted this question should be given grace marks as losing 3 marks is a heavy fine without any reason