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Question : The oxidation number of Nickel in K4[Ni(CN)4] is
Option 1: 0
Option 2: +4
Option 3: –4
Option 4: +8
Correct Answer: 0
Solution : The correct option is 0.
The oxidation number of Nickel (Ni) in K4[Ni(CN)4] is 0.
Let "x" be the oxidation number of nickel (Ni). To neutralize the overall charge of the compound (which is 0), the sum of the oxidation numbers
Question : Directions: Select the set in which the numbers are related in the same way as the numbers of the given sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (6, 8, 106) (7, 11, 177)
Option 1: (8, 7, 119)
Option 2: (9, 8, 154)
Option 3: (5, 9, 101)
Option 4: (7, 9, 136)
Correct Answer: (9, 8, 154)
Solution : Given: (6, 8, 106); (7, 11, 177)
Like, (6, 8, 106)→(6)2 + (8)2 + 6 = 36 + 64 + 6 = 106 (7, 11, 177)→(7)2 + (11)2 + 7 = 49 + 121 + 7 = 177
Let's
Question : Directions: Which letter cluster will replace the question mark (?) to complete the given series? GSAV, JPER, ?, PJMJ, SGQF
Option 1: MMJO
Option 2: MMIN
Option 3: MNIO
Option 4: MNIP
Correct Answer: MMIN
Solution : Given: GSAV, JPER, ?, PJMJ, SGQF
In the above-given series, add 3 and 4 to the place value of the first and third letters and subtract 3 and 4 from the place value of the second and fourth letters of the previous term to get
Question : Who wrote the book "Five Point Someone: What Not to Do at IIT"?
Option 1: Jhumpa Lahiri
Option 2: Amish Tripathi
Option 3: Kiran Bedi
Option 4: Chetan Bhagat
Correct Answer: Chetan Bhagat
Solution : The correct option is Chetan Bhagat.
The first novel that Indian author Chetan Bhagat released was titled Five Point Someone: What Not to Do at IIT. While he was still employed, Bhagat began writing his first book towards the beginning of the 2000s.
Question : Directions: How many triangles are there in the given figure?
Option 1: 24
Option 2: 28
Option 3: 22
Option 4: 30
Correct Answer: 28
Solution : The given figure can be labelled as shown below –
Now, in the above figure, there are 28 triangles. They are ABD, DBC, ABC, BCH, BAI, EJI, EBF, FEV, FJW, FKM, FGL, GHK, GFB, EFG, TSY, TRa, TRU, RXS, RNQ, ROP, PQZ, PRa, TRP, abd,
Question : Which of the following is not a Rabi crop in India ?
Option 1: Wheat
Option 2: Barley
Option 3: Rapeseed
Option 4: Jute
Correct Answer: Jute
Solution : The correct answer is Jute.
Rabi crop is sown in winter season in the month of October and November and it is harvested around summers in the month of April to June. Major rabi crops are- Wheat, Rapeseed, Barley, etc.
Jute is a kharif crop
Question : The price of 1 kg of rice is increased by 50 percent and the old price of rice is Rs. 60. What is the new price of rice per kg?
Option 1: Rs. 90
Option 2: Rs. 80
Option 3: Rs. 60
Option 4: Rs. 72
Correct Answer: Rs. 90
Solution : According to the question In this case, the old price of rice is Rs. 60, and the percentage increase is 50%. ⇒ New price = Old price + 50% of old price = 60 + (60 × 0.50) = 60 + 30 = 90
Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (2, 1, 5) (5, 12, 22) (6, 2, ?)
Option 1: 6
Option 2: 14
Option 3: 8
Option 4: 12
Correct Answer: 14
Solution : Given: (2, 1, 5), (5, 12, 22); (6, 2, ?)
In the given sets, multiply the first number by 2 and then add the resultant to the second number to obtain the third number. Like, (2, 1, 5)→2 × 2 = 4; 4 + 1
Question : Directions: In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows the given statements. Statements: I. All A is Y. II. No Z is A. Conclusions: I. All Y are A. II. Some Y is A. III Some A is Z.
Option 1: Neither conclusion follows
Option 2: All conclusion follows
Option 3: Only conclusion II follows
Option 4: Both conclusions I and III follow
Correct Answer: Only conclusion II follows
Solution : The possible Venn diagram according to the given statements is as follows –
Let's analyse the conclusions – Conclusion (I): All Y are A – From the Venn diagram, it is evident that some parts of the circle representing Y lie inside
Question : The difference in simple interest on a certain sum at 6% per annum for 5 years and 5% per annum for 4 years is Rs. 422. Find the sum
Option 1: Rs. 2570
Option 2: Rs. 4220
Option 3: Rs. 6500
Option 4: Rs. 1990
Correct Answer: Rs. 4220
Solution : Let the principal be $x$. Rate = 6% for 1st case and 5% for 2nd case Time = 5 years for 1st case and 4 years for 2nd case. Difference = Rs. 422. According to the question, Difference in simple interest = $\frac{\text{Principal ×
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