List of top Questions asked in CBSE CLASS XII

In Python Pandas, DataFrame.......... [] is used for label indexing with DataFrames.
Every web page on the Internet has a unique address. This address is known as :
Assertion (A) : The drop() method in Pandas can be used to delete rows and columns from a DataFrame.
Reason (R) : The axis parameter in the drop() method specifies whether to delete rows (axis=0) or columns (axis=1).
Assertion (A) : The ROUND() function in SQL can be used to round off a number to a specified number of decimal places.
Reason (R) : The ROUND() function is a string function that accepts character values as input and returns numerical values as output.
Which of the following libraries defines an ndarray in Python ?
Which of the following Python statements is used to change a column label in a DataFrame, df ?
Which SQL function calculates $a^b$ ?
Which protocol is used while communicating through video calls on the Internet ?
Which of the following Python statements will be used to select a specific element having index as points, from a Pandas Series named ser?
Excessive screen time and poor posture can lead to :
Which of the following data structure is used for storing one-dimensional labelled data in Python Pandas ?
Priya received an email that appeared to be from her bank, asking her to update her account information by clicking on a link. She clicked the link to enter her details, but immediately after, some amount was debited from her account. What type of cybercrime did Priya fall victim to ?
What is the default index type for a Pandas Series if not explicitly specified ?
In Python which function of matplotlib library is used to save a plot ?
State whether the following statement is True or False :
The MOD() function in SQL returns the quotient of division operation between two numbers.
Which of the following is not an aggregate function in SQL ?
Raheem created a unique computer software and wants to protect his creation from being copied or used without his permission. He is considering to apply for legal protection. Which type of intellectual property protection should Raheem apply for, to safeguard his software ?
What will be the output of the following SQL command?
SELECT MONTHNAME('2024-08-02');
Temporary data files stored by websites in our computer can be used to track our online activities and also to personalize browsing experience. These files are known as:
State whether the following statement is True or False:
In Python, we cannot create an empty DataFrame.
Explain \( [Co(NH_3)_6]^{3+} \) is an inner orbital complex whereas \( [Ni(NH_3)_6]^{2+} \) is an outer orbital complex. [At. No. Co = 27, Ni = 28]
Ajanta Ltd. purchased machinery worth Rs 36,00,000 from Sujata Ltd. Ajanta Ltd. paid half the amount to Sujata Ltd. through a bank draft and the balance by issuing 8 debentures of Rs 100 each at a discount of 10.
Pass the necessary journal entries in the books of Ajanta Ltd. for the above transactions.

Bittu and Chintu were partners in a firm sharing profits and losses in the ratio of 4 : 3. Their Balance Sheet as at 31st March, 2024 was as follows:

Balance Sheet of Bittu and Chintu as at 31st March, 2024

LiabilitiesAmount (₹)AssetsAmount (₹)
Capitals: Fixed Assets15,40,000
  Bittu8,00,000Stock3,50,000
  Chintu6,00,000Debtors1,40,000
General Reserve2,10,000Bank70,000
Creditors4,90,000  
Total21,00,000Total21,00,000

On 1st April, 2024, Diya was admitted in the firm for 1⁄7 share in the profits on the following terms:

  1. New profit sharing ratio between Bittu, Chintu, and Diya will be 3 : 3 : 1.
  2. Fixed Assets were found to be overvalued by ₹ 1,40,000.
  3. Creditors were paid ₹ 4,20,000 in full settlement.
  4. Diya brought proportionate capital and ₹ 5,60,000 as her share of goodwill premium by cheque.

Prepare Revaluation Account and Partners’ Capital Accounts.

Identify the type of code used by a trading company Ms. Ahana Ltd.:

CodesAccounts
CA005Super Ltd.
CA006Regina Ltd.
CA007Nasir & Sons Ltd.
State the advantages of ‘Pivot Table’ report.