InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Effective atomic rule is used to find-A. geometry of complexB. stability of complexC. number of isomers of complexD. number of possible ligands arounds metal ion in complex |
| Answer» number of possible ligands arounds metal ion in complex | |
| 52. |
Give the names of two insect resistant crop varieties. |
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Answer» (ii) Two insect- resistant crop varieties : (a) Pusa gaurav. (b) Pusa sawni . |
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| 53. |
Attempt any TWO of the following : Give floral adaptations of entomophily. |
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Answer» (iv) Floral adaptation of Entomophilly are : (a) Large and attractive flowers. (b) Flowers have attractive bright colours , pleasant fragrance and nector. |
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| 54. |
Enlist causes of deforestation. |
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Answer» (iii) Causes of deforestation are : (a) Intensive collection of firewood. (b) Clearing of land for agriculture. |
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| 55. |
Attempt any TWO of the following : (i) Give the advantages of biogas. |
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Answer» (i) Advantages of biogas : (a) It is a cheap, safe and renewable source of energy. (b) It burns with blue flame and without smake. |
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| 56. |
The stability order for carbocation is :A. `2^(@) gt 3^(@)gt I^(@)`B. `3^(@) gt 2^(@)gt I^(@)`C. `3^(@) gt 1^(@)gt 2^(@)`D. `1^(@) gt 3^(@)gt 2^(@)` |
| Answer» `3^(@) gt 2^(@)gt I^(@)` | |
| 57. |
What is Lanthanoid contraction ? Explain , why lanthanum `(Z=57)` forms `La^(3+)` ion, while cerium `(Z=58)` forms `Ce^(4+)` ion ? |
| Answer» La has the electronic configuration of [Xe] `4f^(0) 5f^(1), 6s^(2)` after losing 3 electrons La forms `La^(3+)` ion which is stable due to empty 4f orbitals while Ce has the electronic configuratin of [Xe] `4f^(2),5d^(0) 6s^(2)` after losing 4 electrons Ce forms `Ce^(4+)` ion which is stable due to empty 4f orbitals. Thus, Lanthanum forms `La^(3+)` ion while cerium forms `Ce^(4+)` ions. | |
| 58. |
what is heterocyst ? |
| Answer» A heteocyst is a differentiated cyanobacterical cell that carries out nitrogen fixation . | |
| 59. |
(B) Grammar (Do as directed): Now-a-days, we have to use. solar energy on .....large scale (FIll in the blanks with appropriate articles.) |
| Answer» Now-a-days, we have to use the solar energy on a large scale. | |
| 60. |
Which of the following is a basic oxide ?A. `SiO_(2)`B. `P_(4)O_(10)`C. `MgO`D. `Al_(2)O_(3)` |
| Answer» Correct Answer - C | |
| 61. |
Read the following extract and answer the questions I celebrate the virtues and vices of suburban middle-class people who overwhelm the refrigerator and position colourful umbrellas near the garden that longs for a pool, for my middle-class brother this principle of supreme luxury : what are you and what am I, and we go on deciding the real truth in this world What things of luxury do the middle-class people enjoy |
| Answer» Things of luxury, such as refrigerators and colourful umbrella are enjoyed by the middle-class people. | |
| 62. |
Read the following extract and answer the questions I celebrate the virtues and vices of suburban middle-class people who overwhelm the refrigerator and position colourful umbrellas near the garden that longs for a pool, for my middle-class brother this principle of supreme luxury : what are you and what am I, and we go on deciding the real truth in this world According to you why do the middle-class people imitate the rich |
| Answer» Middle-class people imitate the rich because they have an earnest desire to become rich and by imitating them they feel the same | |
| 63. |
Read the following extract and answer the questions I celebrate the virtues and vices of suburban middle-class people who overwhelm the refrigerator and position colourful umbrellas near the garden that longs for a pool, for my middle-class brother this principle of supreme luxury : what are you and what am I, and we go on deciding the real truth in this world Find out an example of Antithses from the extract |
| Answer» Antithesis : I celebrate the virtues and vices | |
| 64. |
Find out the words from the extract which mean (i) widespread |
| Answer» Correct Answer - rambling | |
| 65. |
Rewrite the following sentences in the ways instructed : His father sat at the big kitchen table working on a fishing net. ( Make it a compound sentence.) |
| Answer» His father sat at the big· kitchen table and worked on a fishing net. | |
| 66. |
Rewrite the following sentences in the ways instructed : Reuben scoured the town, collecting the burlap nail bags. ( Rewrite it using the infinitive form of the underlined word.) |
| Answer» Reuben scoured the town to collect the burlap nail bags. | |
| 67. |
Rewrite the following sentences in the ways instructed : He hid the can beneath a pile of sweet-smelling hay. (Frame a Wh-question to get the underlined part as an answer.) |
| Answer» Where did he hide the can | |
| 68. |
Rewrite the following sentences in the ways instructed : Parents and teachers should take precautions in ensuring a proper balance berween education and moral values. (Rewrite it using the infinitive form of the underlined word) |
| Answer» (ii) Parents and teachers should take precautions to ensure a proper balance between education and moral values. | |
| 69. |
Rewrite the following sentences in the ways instructed : Vasectonry has been made compulsory. (Rewrite it beginning with The villagers...) |
| Answer» The villagers have made vasectomy com-pulsory. | |
| 70. |
(A) Read the following extract and answer the questions given below : Co-education is a system of education where boys and girls study together. In a country as conservative as India, co-education helps boys and girls break popular misconceptions existing between both since time immemorial. Co-education encourages familiarity between boys and girls and they start breaking misconceptions about each other. Their general outlook changes and they develop a healthy, normal relationship with more mature personalities. There is no discrimination based on sex. It has often been seen that students who come from a co-educational background are better communicators than students who study in same-sex institutions. Co-education also helps students in their later life when they become professionals and interact with the opposite sex. As these boys and girls lose their shyness, they develop a broader outlook and are devoid of a narrow mentality. It is essential to have more co-educational institutions to nurture good, normal, healthy citizens who in turn can help remove social evils like dowry through joint efforts. Co-education can also reduce eve-teasing, ragging, rape and other crimes against women. With more under-standing, mutual respect is developed and the mind is free of any unsavoury thoughts. Thinking maturity comes at an early age and goes a long way in developing well-rounded personalities in both. What needs to be done immediately nation-wide is to introduce co-education right from primary school. At this stage itself, parents and teachers should take precautions in ensuring a proper balance between education and moral values. Enlist positive effects of co-education on boys and girl |
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Answer» The positive effects of co-education are as follows (i) Boys and girls develop a healthy and normal relationship. They are better communicators. (iii) These boys and girls lose their shyness, they develop a broader outlook and are devoid of a narrow mentality. (iv) Co-education can also reduce eve-teasing, ragging, rape and other crimes against women. |
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| 71. |
Rewrite the following sentences in the ways instructed : Villages need to follow strict rules. (Rewrite it using another Modal Auxiliary showing obligation.) |
| Answer» Villagers must follow strict rules. | |
| 72. |
If `theta` is the measure of acute angle between the pair of line repseented by `ax^(2) + 2hxy + by^(2) = 0` , then prove that `tan theta = |(2sqrt(h^(2) - ab))/(a+b)|,a + b ne 0 ` Hence find the acture angle between the lines `x^(2) - 4xy + y^(2) = 0` |
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Answer» Refer to HSC Paper , Marcj 2017, Answer 2 (B) (ii). On comparing `x^(2) - 4xy + y^(2) =0` with `ax^(2) + 2hxy + by^(2) = 0`, we get a = 1 , 2h = - 4 i.e., h = - 2 and b = 1 Let `theta` be the acute angle between the lines. `therefore " "tan theta = |(2sqrt(h^(2) - ab))/(a+b)|` ` = |(2sqrt((-2)^(2)-1(1)))/(1+1)|` `=|(2sqrt4-1)/(2)| = sqrt(3)` |
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| 73. |
If `int_(0)^(prop)(3x^(2)+2x+1)dx=14`, then `prop = …….`A. 1B. 2C. `-1`D. `-2` |
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Answer» We have `int_(0)^(alpha) (3x^(2) + 2x +1)dx = 14` `rArr " "[(3x^(3))/(3)+(2x^(2))/(2) +x]_(0)^(alpha) = 14` `rArr" " [x^(3) + x^(2) + x ]_(0)^(alpha) = 14` `rArr" "alpha^(3) + alpha^(2) + alpha - 0 = 14` `rArr" "alpha^(3) + alpha^(2) + alpha - 14 = 0` Let `alpha= 2`, then `(2)^(3) +(2)^(2) +2- 14 =0` So, `alpha = 2` satisfies above above equation. Hence, the correct answer form the given alternative is (b) |
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| 74. |
If y = f(x) and x = g(y), where g is the inverse of f, i.e., `g = f^(-1)` and if `(dy)/(dx) and (dx)/(dy)` both exist and `(dx)/(dy) ne 0`, show that `(dy)/(dx) = (1)/((dx//dy))`. Hence, (1) find `(d)/(dx) (tan^(-1)x)` (2) If `y=sin^(-1)x, -1lexle1, -(pi)/(2)leyle(pi)/(2)`, then show that `(dy)/(dx)=(1)/(sqrt(1-x^(2)))` where `|x| lt 1`. |
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Answer» Now , given ` y = sin^(-1)x, 1 - le x le 1, |(x -pi)/(2)| le y le (pi)/(2)` `therefore" "x = sin y " ".......(i)` Differrentiate equation (1) w.r.t.y `(dx)/(dy) = cos y` `= pm sqrt(1- sin^(2)y)` ` = pm sqrt(1-x^(2))" "[by(1)]` Since `(-pi)/(2) le y le (pi)/(2)` `therefore ` ylies in I or IV quadrant `therefore` cos y is positive . `therefore " "(dx)/(dy) = sqrt(1-x^(2))` we have , `(dy)/(dx) = (1)/(((dx)/(dy)))` `therefore" "(dy)/(dx) = (1)/(sqrt(1-x^(2))), |x|lt 1` Hence Proved. |
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| 75. |
Prove that the function given by `f(x)=x^3-3x^2+3x-100`is increasing in R.A. increasingB. decreasingC. increasing and decreasingD. neither increasing nor decreasing |
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Answer» We have, `f(x) = x^(3) - 3x^(2) +3x - 100 , x in R` ` f(x) = 3x^(2) - 6x + 3 = 3 (x^(2) - 2x +1)` ` = 3(x - 1)^(2)` As `(x - 1)^(2)` is always positive ` x ne 1` So, f(x) is increasing for all ` x ne R` Hence, the correct answer form the given alternatives is (a). |
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| 76. |
Evaluate `int(sqrt(tanx))/(sinx. cos x) dx` |
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Answer» Let `I = int(sqrt(tan)x)/(sinx.cos x)dx` ` = int(sqrt(tanx).sec^(2)x)/(tanx)` `= int(sec^(2)x)/(sqrt(tanx))dx` `therefore int(sqrt(tan)x)/(sinx.cos x dx) dx = 2 sqrt(tan)x + c` |
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| 77. |
It the function `f(x) = ((5^(sinx) - 1)^(2))/(x log (1 +2 x)) `for `x ne 0` is continous at x = 0 find f(0). |
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Answer» Since `f(x) = ((5^(sinx) - 1)^(2))/(x log (1+2x))` is continous at x = 0 `therefore" "f(0) = underset(x to 0)(lim)f(x)` ` = underset(x to0)(lim)((5^(sinx) -1)^(2))/(x log (1+2x))` ` = underset(x to 0)(lim)[((((5^(sinx)-1)^(2))/(sinx))((sin^(2)x)/(x^(2))))/((xlog (1+2x))/(x^(2)))]` ` = (underset(x to0)(lim)((5^(sinx) - 1)/(sinx))^(2) underset(x to0)(lim)((sinx)/(x))^(2))/(2underset(xto0)(lim)(1)/(2x)log(1+2x)^(1//2x))` `= ((log 5)^(2))/(2log e)` `f(0) = ((log5)^(2))/(2)" "[because log e = 1]` |
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| 78. |
(A) Read the following extract and answer the questions given below : Old women once were continents. They had deep woods in them, lakes, mountains, volcanoes even, even raging gulf. When the earth was in heat They melted, shrank. leaving only their maps. You can fold them and keep them handy: who knows, they might help you find your way home. Pick out the lines highlighting the impotance of old women. |
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Answer» (i) Old women once were continents. (ii) You can fold them and keep them handy. (iii) Who knows they might help you find your way home. |
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| 79. |
You wish to ban the use of plastic carry bags in your locality . The use of plastic carry bags in your locality. The use of plastic carry bags is a serious threat to the environment . Write a letter to the Editor of a newspaper suggestion suitable to overcome the problem. |
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Answer» `{:(""," ""ABCL"),(""," ""C//208,Mangal Apt."),(""," ""Manish Nagar"),(""," ""Andheri(W) ,Mumbai"),(""," ""Date : 11-07-20XX"):}` `{:("The Editor"," """),("The Times of India"," """),("S.V Road"," """),("Mumbai-62"," """):}` Sub.: Hazardous effects of plastic cany bags. Sir/Madam, I wish to draw the attention of the concerned authorities to the hazardous effects of plastic carry bags. We all have witnessed how plastic bags are used recklessly by everyone without giving a second thought about the danger it can cause to the environment. Plastic is not perishable as a result it makes the land barren. Rubbish in the form of plastic bags, thrown into gutters leads to problem of water ~ogging especially during the rains. When garbage is burnt along with plastic the smoke it emits leads ? a disastrous effect on health. Animals are the victims of plastic carry bags, they chew it and carry bags clog their intestines, it leads to an untimely death of animals. Many times vegetables are kept in plastic bags by many housewives, there are unaware of the toxic chemicals used while makmg plastic bags. I think people should be made aware about the hazardous effects of plastic carry bags. Advertisement showing ill effects should be shown on TV and in cinema theaters. Government can play an important role int it . Goverment should make strict rules for using low micron bags. Plastic carry bags should be recyled. Citizens should be encouraged to use paper and clothes bags We should pledge to fight against the moster of plstic Thanking you `{:(""," ""Yours faithfully"),(""," ""ABCL"):}` |
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| 80. |
A and B are two wire. The radius of A is twice that of B. If they are stretched by the same load, then the stress on B isA. equal to that of AB. half that of AC. two times that of AD. four times that of A |
| Answer» Correct Answer - A | |
| 81. |
When a resistance of 12 ohm is connected across a cell, its terminal potential difference is balanced by 120 cm length of potentiometer wire. When the resistance of 18 ohm is connected across the same cell, the balancing length is 150 cm. Find the balancing length when the cell is in open circuit. Also calculate the internal resistance of the cell. |
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Answer» We have, Case I : `R=12Omegal_(2)=120cm` Case II : `R=18Omega,l_(2)=150cm` From first condition, Internal resistance (r) `=R((l_(1)-l_(2))/(l_(2)))` `r=12((l_(1)-l_(2))/(120))" "......(i)` From second condition, Internal resistance (r) `=R((l_(1)-l_(2))/(l_(2)))` `=18((l_(1)-150)/(150))" "......(ii)` From equations (i) and (ii) `12((l_(1)-120)/(120))=18((l_(1)-150)/(150))` `5(l_(1)-120)=6(l_(1)-150)` `5l_(1)-600=6l_(1)-900` `l_(1)=300cm.` Putting the value of `l_(2)` in equation (i) we, get `r=12((300-120)/(120))` `r=18Omega` Therefore, the balancing lenght is 300 cm and internal resistance is `18Omega`. |
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| 82. |
निम्नलिखित प्रश्नों में से किसी एक प्रश्न का उत्तर लगभग 120 शब्दों में लिखिए सचदेव बाबू का चरित्र-चित्रण कीजिए |
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Answer» सचदेव बाबू एक कुशल इंजीनियर हैं। उनके अधीन काम करने वाले उन्ह बड़े साहब, हाकिम या इंजीनियर साहब कहकर पुकारते हैं । सचदव बाबू शांतिप्रय व्यक्ति हैं। महानगर का भीड़-भाड़ वाला दमघोंटू वातावरण उन्हें पसन्द नहीं है। इसलिए वे आरा जैसे गाँवई शहर में अपना घर बनवाकर रहते हैं। सचदेव बाबू गुण ग्राहक व्यक्ति हैं। इसीलिए अच्छा और सूझ-बुझवाला कारीगर यदु को बह पसंद करते हैं, उसकी सराहना करते हैं। वे उसे समय-समय पर बख्शीश भी देते हैं अपने खाने में, लंच के समय पर उसे सब्जी और अचार भी प्रदान करते हैं। उनके मन में यदु के लिए अपनेपन की भावना दिखती है। किन्तु, सचदेव बाबू उच्चवर्गीय व्यक्ति हैं, अत: वे कोई खतरा मोल लेना नहीं चाहते। इसलिए यद की आवाज पहचानकर भी वे दरबाजा नहीं खोलते। उन्हें शक है कि शायद यद की आवाज में कोई दूसरा व्यक्ति बोल रहा हो। इसलिए पत्नी की सलाह मानकर वे पुलिस को भी बुलाते हैं। उनके चरित्र में सतर्कता का ये पहलू दिखाई पड़ता है। जब पुलिस इंस्पेक्टर यद् को गिरफ्तार कर लेता है तब इंस्पेक्टर के सामने वे यदु को पहचानने से साफ इनकार कर देते हैं। इस इनकार के पीछे उनकी उच्चवर्गीय मानसिकता भी झलकती है, लेकिन यही इनकार उनके मन की अशांति भी बन जाता है, जब यद् उनके घर में सचमुच चोर बनकर आने की धमकी देता है। इस प्रकार सचदेव बाबू के चरित्र की यह विशेषताएँ दिखाई देती हैं कि वह एक उच्च वर्ग की मानसिकता वाले ऐसे व्यक्ति हैं, जो अपने स्वार्थ के लिए एक मिस्त्री के हुनर का उपयोग करके फिर उससे मुँह फेर लेते हैं |
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| 83. |
Three capacitors of capacities `8muF,8muFand4muF` are connected in a series and a potential difference of 120 volt is maintained across the combination. Calculate the charge on capacitor of capacity `4muF`. |
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Answer» Let the capacitors be `C_(1)=8muF,C_(2)=8muFandC_(3)=4muF`. All the capacitors are connected in series, so, the equivalent capacitance `C_(s)` can be calculated as `(1)/(C_(s))=(1)/(C_(1))+(1)/(C_(2))+(1)/(C_(3))` `(1)/(C_(s))=(1)/(8)+(1)/(8)+(1)/(4)` `(1)/(C_(s))=(1+1+2)/(8)` `C_(s)=2muF` In series combination, `Q_(1)=Q_(2)=Q_(3)` But `Q=C_(s)V` `:.` Charge on capacitor of capacity `4muF` can be calculated as `Q=2xx10^(-6)xx120` `=240xx10^(-6)C=240muC` |
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| 84. |
निम्नलिखित मुहावरों में से किन्हीं दो के अर्थ लिखकर वाक्यों में प्रयोग कीजिए: पैरों पर खड़ा होना |
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Answer» पैरों पर खड़ा होना-स्वावलंबी बनना वाक्य-सभी बच्चों को उचित आयु में अपने माँ- बाप पर निर्भर न होते हुए अपने पैरों पर खड़ा होना चाहिए |
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| 85. |
निम्नलिखित वाक्यों में से किन्हीं दो वाक्यों को शुद्ध करके फिर से लिखिए : गुरूदेव ने उसका पीठ पर हाथ फेरी |
| Answer» गुरुदेव ने उसकी पीठ पर हाथ फेरा | |
| 86. |
निम्नलिखित वाक्यों में से किन्हीं दो वाक्यों को शुद्ध करके फिर से लिखिए : शनी गृह सूर्य से हमारी अपेक्षा करीब दस गुना अधिक दूर है |
| Answer» शनि ग्रह सूर्य से हमारी अपेक्षा करीब दस गुना अधिक दूर है | |
| 87. |
निम्नलिखित मुहावरों में से किन्हीं दो के अर्थ लिखकर वाक्यों में प्रयोग कीजिए: हाथ-पर-हाथ धरे बैठना |
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Answer» हाथ पर-हाथ धरे बैठना- बेकार बैठना। वाक्य - किसी परिस्थिति में हाथ-पर हाथ धरे बैठने के बजाय कार्य करते रहना चाहिए |
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| 88. |
निम्नलिखित मुहावरों में से किन्हीं दो के अर्थ लिखकर वाक्यों में प्रयोग कीजिए: बात को अनसुनी करना |
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Answer» बात को अनसुनी करना - बात पर ध्यान न देना वाक्य - अपनी सफाई पेश करने वाले गुनहगार की बात पुलिस ने अनसुनी कर दी |
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| 89. |
कोष्ठक की सूचना के अनुसार किन्हीं दो वाक्यों का काल परिवर्तन करके वाक्य फिर से लिखिए : बड़े बाबू को उनकी स्थिति पर दया आ गई। ( पूर्ण वतमान काल में बदलिए।) |
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Answer» बड़े बाबू को उनकी स्थिति पर दया आ गई है। (पूर्ण वर्तमानकाल में वाक्य) |
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