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Question : Sulphuric acid is
Option 1: monobasic
Option 2: dibasic
Option 3: tribasic
Option 4: tetrabasic
Correct Answer: dibasic
Solution : The correct option is dibasic.
Sulphuric Acid is dibasic as it replaces two hydrogen atoms and has basicity 2. Its Chemical name is H2SO4. Oil of Vitriol and King of Chemical, are its other names, and its nature is Oily,
Question : Directions: Select the option in which the numbers share the same relationship in the set as that shared by the numbers in the given set. (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) (32, 24, 8) (48, 42, 6)
Option 1: (64, 62, 8)
Option 2: (56, 50, 6)
Option 3: (16, 14, 4)
Option 4: (18, 12, 4)
Correct Answer: (56, 50, 6)
Solution : Given: (32, 24, 8); (48, 42, 6) The pattern is – (32, 24, 8)→32 – 24 = 8 (48, 42, 6)→48 – 42 = 6
Let's check each option – First option: (64, 62, 8) = 64 – 62 = 2 ≠ 8
Question : Directions: Three Statements are given followed by Three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: All curtains are doormats. Some doormats are pillows. Some pillows are bedsheets. Conclusions: I. Some bedsheets are doormats. II. Some bedsheets are curtains. III. Some pillows are doormats.
Option 1: Only conclusion III follows
Option 2: Only conclusion I follows
Option 3: Only conclusion II follows
Option 4: All conclusions follow
Correct Answer: Only conclusion III follows
Solution : The possible Venn diagram according to the given statements is as follows –
Let's analyse the conclusions – Conclusion I: Some bedsheets are doormats – From the above diagram, it can be seen that there is no direct relation between bedsheets and
Question : If $a^2+b^2+c^2=14$ and $a+b+c=6$, then the value of $(ab+bc+ca)$ is:
Option 1: 11
Option 2: 12
Option 3: 13
Option 4: 14
Correct Answer: 11
Solution : Given: $a^2+b^2+c^2=14$ and $a+b+c=6$. On squaring the given equation $a+b+c=6$, we get, $(a+b+c)^2=6^2$ ⇒ $a^2+b^2+c^2+2(ab+bc+ca)=36$ Substitute the value of $a^2+b^2+c^2=14$ in the above equation and we get, ⇒ $14+2(ab+bc+ca)=36$ ⇒ $2(ab+bc+ca)=22$ ⇒ $(ab+bc+ca)=11$ Hence, the correct answer is 11.
Question : Directions: The bar graph below shows the percentage distribution of a company's total expenditures under various expense heads during 2013. Study the graph and answer the given question. If the expenditure on the advertisement is Rs. 2.10 crores, then the difference between the expenditures on transport and taxes is:
Option 1: Rs. 25 lakhs
Option 2: Rs. 35 lakhs
Option 3: Rs. 65 lakhs
Option 4: Rs. 95 lakhs
Correct Answer: Rs. 35 lakhs
Solution : Let the total expenditure be Rs. $100x$. According to the question, Interest on Advertisement = 15% $\frac{15}{100} \times 100x = 21000000$ $⇒15x=21000000$ $⇒x=14,00,000$ Total expenditure = 14,00,00,000 Expenditure on taxes = 10% = $\frac{10}{100} \times 14,00,00,000$ = 1,40,00,000 Expenditure on transport = $\frac{12.5}{100}
Question : Directions: Which two numbers, from amongst the given options, should be interchanged to make the given equation correct? (6)³ ÷ 12 + [(√81) x 4] – (28 ÷ 2) + 24 = 43
Option 1: 12 and 24
Option 2: 6 and 24
Option 3: 81 and 4
Option 4: 28 and 24
Correct Answer: 12 and 24
Solution : Given: (6)³ ÷ 12 + [(√81) x 4] – (28 ÷ 2) + 24 = 43
Interchanging the numbers as given in the options – First option: 12 and 24 (6)³ ÷ 24 + [(√81) x 4] – (28 ÷ 2) + 12
Dear Aspirant!
Yes it is possible to purse you BCA (Bachelor of Computer Applications) even if you take admission from science to commerce after failing in 11th grade. However, admission requirements can vary depending on the institution in which you want to take admission. You need to choose the specific
Question : Directions: In the question, a part of the sentence is in bold. Below are given alternatives to the bold part at (1), (2), and (3) that may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (4).
We saw one tiger approached to us.
(1) approaching to us
(2) approaching us
(3) approaching towards us
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The correct answer is the second option.
This option "approaching us" is the correct choice as the verb "approached" should be in the gerund form "approaching" to indicate an act of approaching. The sentence conveys the meaning that we saw one tiger while it
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