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- (Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (Chemistry)
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- (Download) CBSE Class-12 2016-17 Sample Paper (Chemistry)
- Olympiad: Homi Bhabha Centre For Science Education
Posted: 26 Dec 2016 08:05 AM PST
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Posted: 26 Dec 2016 04:22 AM PST
(Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (Chemistry)
Time allowed: 03 Hours
Maximum Marks: 90
(i) The question paper comprises two sections, A and B. You are to attempt both the sections.
1 Name the process of converting vegetable oil to vegetable ghee. 1
2 List two secondary sexual characters of males that are different from that of females.
3 Write the main function of Ozone in the upper atmosphere 1
4 When a concave mirror is placed facing the Sun, the Sun's rays converge to a point 10 cm from the mirror. Now, if you place a 2 cm long candles flame 20 cm away on the principal axis of the mirror, where would you place a screen to obtain the image of the candle? What would see the size of the image? Draw a ray diagram to justify your answer.
5 If you find coliform bacteria in a sample of water collected from a river, what would you conclude? Give reason for such kind of water pollution.
6 Which natural resources are called the "biodiversity hot spots"? How these hot spots maintain ecological balance?
7 What are isomers? "Isomers of the first three members of alkane series are not possible". Give reason to justify this statement and draw structures of two isomers of butane, C4 H10.
8 An organic compound 'X' is a liquid at room temperature. It is also a very good solvent and has the molecular formula C2 H6 O. on oxidation 'X' gives 'Y' which give, break effervescence on reacting with NaHCO3. X reacts with Y in the presence of conc.H2SO4to give another compound 'Z' which has a pleasant smell. Identify X, Y and Z. also write chemical equations to show the formation of Y and Z.
9 An element 'A' belongs to 3rd period and 17th group of the periodic table.
a) Write atomic member and electronic configuration of 'A'
10 Consider the following elements 4Be, 9F, 19K, 20Ca
a) Select the element having one election in the outer most shell.
11 Explain with the help of labelled diagrams the development that takes place in each of the body parts of a Planaria where body is cut into three pieces. None this process and give an example of an organism in which a similar process can be observed.
12 List any four methods of contraception used by humans. How does the use of three methods have a direct effect on the heath and prosperity of a family?
13 List two functions each of the following points of human female reproductive system
14 "Different species use different strategies to determine sex of a new born individual. It can be environmental cues or genetically determined". Justify this statement giving reason/example.
15 List in tabular form, two distinguishing features between the acquired traits and the inherited traits with one example of each
16 A student has to project a three times magnified image of a candle flame on a wall. Name the type of the lens (converging/ diverging) required for the purpose. It the candle flame is at a distance of 6 m from the wall, find the focal length of the lens.
17 A child while playing with his father's spectacles burnt a hole in a piece of them tissue paper by focusing the image of the Sun on at.
18 Some residents of your colony are planning to cut trees to create a place for parking vehicles. You are upset by knowing all this and wanted to do something to create awareness about the importance of trees.
(a) List any three reasons that you will use to convince residents of your colony not to cut the existing trees.
19 a) State two main reasons for carbon forming a very large number of compounds.
c) What happens when (Write chemical equations of the reactions)
20 A. Draw a longitudinal section of a flower and label the following parts –
B. Write the names of the parts labeled as A, B, C, D in the diagram given below:
Posted: 26 Dec 2016 04:14 AM PST
(Download) CBSE Class-10 2016-17 Sample Paper (Elements Of Book Keeping And Accountancy)
Q1. The purpose of preparing final accounts is to ascertain: 1
a) Profit or loss
Q2. Trading Account shows:
a) Financial position of the concern
Q3. Balance sheet shows: 1
a) Profit or loss
Q4. Trading and Profit & Loss Account is prepared: 1
a) At the end of calendar year
Q5. Balance Sheet is prepared: 1
a) For a particular period
Q6. Balance sheet shows: 1
a) Assets only
Q7. Excess of credit in Profit and Loss account is called: 1
a) Net profit
Q8. Wages and Salaries appearing in Trial Balance is shown: 1
a) On the debit side of Trading A/c
Q9. Land is: 1
a) Current Asset
Q10. Identify the current asset from the following: 1
Q11. Generally accounts under single entry system are maintained by: 1
a) Sole Trader
Q12. Single entry system of book keeping is: 1
Q13. When closing capital is more than the opening capital, it denotes: 1
Q14. When closing capital is less than the opening capital, it denotes: 1
Q15. Which of the following is correct about Single Entry System: 1
a) Simple Method
Posted: 26 Dec 2016 03:04 AM PST
(Download) CBSE Class-12 2016-17 Sample Paper And Marking Scheme (Creative Writing and Translation Studies)
Max. Marks: 80
TIME 3 HRS.
The Question paper is divided into three sections:
Section A: Reading Comprehension 20 marks
1. All questions are compulsory.
Reading – 20 marks
1. Read the passage given below and answer the questions that follow:
Yoga Tourism opens up tremendous opportunities as it is for everyone. People of all generations and fitness levels can find classes suitable for them.The practice of Yoga also helps one to achieve peace and tranquility through focused training. At the time when job responsibilities, kids' needs, spouse's demands, and never-ending to-do lists can easily overwhelm us, yoga teaches us to relax, de-clutter our minds, and create a space for ourselves where we can be happy and at peace with ourselves.
There are many forms of 'yoga' one can pursue, depending on one's preferences and lifestyles. There is relaxation yoga where breathing exercises and meditation techniques are stressed upon; there is power yoga for those who are looking to increase their body's stamina and resistance power; there is prenatal yoga for pregnant women, and there is Hatha Yoga for beginners who want to learn basic postures at a comfortable pace.. We need to remember that 'Yoga' for Indians and 'Yoga' for foreigners is not the same thing. Many American yoga students, for example, are fiercely independent and self-reliant. For some, yoga is a not-too-strenuous way to lose fat effectively, or reduce their stress. For others, yoga might mean doing strenuous postures to become more flexible, firm up their abs, or attain slender muscularity. Others might be looking for ways to reverse the onset of lifestyle diseases like diabetes and arthritis. This commodification of 'Yoga' is crucial today, if you want to earn from it.
June 21 has created an opportunity for the entire Indian travel and tourism fraternity to boost inbound tourism to the country. Yoga tours are already being conducted regularly, with clientele from France, USA, Germany, Russia, and several other countries. With the World Yoga Day branding, the Yoga is now known all over the world, and the niche tourism products in the field with dedicated Yoga packages are bound to do well in such a scenario.
Yoga tourism is not only good for ashram services sector but also for hospitality sector in general. Besides foreign tourists, corporate houses and companies from India and abroad popularly opt for Yoga sessions for their employees as offsite training programmes. It presents several more opportunities for those who are working for the tourism industry.
Here is a word of caution though. Despite all the branding and marketing efforts, Yoga tourism can only pick up when we offer quality to the tourists. India has an edge over countries because the trips to India are moderately priced and offer several budget options too. It is also believed to be the country where roots of Yoga lie. If you can build upon premise, and offer world-class services and real results to wellness tourists, you are bound to do well as Yoga tourism operator, trainer or service provider.
1.1 On the basis of your understanding of the passage answer the following:--
a. Would you want to visit a country for yoga tourism? Why or why not?
2 Read the story given below and answer the questions that follow:-
I was driven one afternoon in November, 1896, by a rain of such chilling copiousness that any shelter was preferable to exposure. Now I found myself upon an apparently abandoned road which I had chosen as the shortest cut to Arkham, overtaken by the storm at a point far from any town, and confronted with no refuge save the antique and repellent wooden building which blinked with bleared windows from between two huge leafless elms near the foot of a rocky hill. Distant though it is from the remnant of a road, this house none the less impressed me unfavorably the very moment I espied it.
had somehow taken it for granted that the house was abandoned, yet as I approached it I was not so sure, for though the walks were indeed overgrown with weeds, they seemed to retain their nature a little too well to argue complete desertion. Therefore instead of trying the door I knocked, feeling as I did so a trepidation I could scarcely explain. As I waited on the rough, mossy rock which served as a door-step, I glanced at the neighboring windows and the panes of the transom above me, and noticed that although old, rattling, and almost opaque with dirt, they were not broken. The building, then, must still be inhabited, despite its isolation and general neglect. However, my rapping evoked no response, so after repeating the summons I tried the rusty latch and found the door unfastened. Inside was a little vestibule with walls from which the plaster was falling, and through the doorway came a faint but peculiarly hateful odor.
I entered, carrying my bicycle, and closed the door behind me. Ahead rose a narrow staircase, flanked by a small door probably leading to the cellar, while to the left and right were closed doors leading to rooms on the ground floor.
Leaning my cycle against the wall I opened the door at the left, and crossed into a small low-ceiled chamber but dimly lighted by its two dusty windows and furnished in the
On the basis of your understanding of the passage answer the following :--
a. What does the author mean when he says, " this house nonetheless impressed me unfavorably"
3.Read the poem and answer the questions that follow:-
The sky is full of the sun and the stars
a. What could be the reason for "wonder and amazement" in the first stanza?
Posted: 26 Dec 2016 02:58 AM PST
Posted: 25 Nov 2016 09:58 PM PST
Olympiad: Homi Bhabha Centre For Science Education
The international Olympiad movement is aimed at bringing the most gifted secondary and higher secondary students of the world together in a friendly competition of the highest level. The Olympiads do not lead directly to any career benefits; rather, they provide a stimulus to begin a career in science or mathematics, to undertake a lifelong journey into the realms of exciting intellectual challenges. The Olympiads are not merely competitions, they are the meeting places of the brightest young minds of the world, and many friendships forged at the Olympiads form the seeds of scientific collaboration later in life. Much like the Olympics in sports, the Olympiads are a celebration of the very best in school level science and mathematics.
A major national Olympiad programme in basic sciences and mathematics which connects to the international Olympiads is in operation in India. The Homi Bhabha Centre for Science Education is the nodal centre of the country for this programme. The programme aims at promoting excellence in science and mathematics among pre-university students.
Among the sciences, the Olympiad programme in Astronomy (junior and senior level), Biology, Chemistry, Junior Science and Physics is a five stage process for each subject separately. The first stage for each subject is organized by the Indian Association of Physics Teachers (IAPT) in collaboration with teacher associations in other subjects. All the remaining stages are organized by Homi Bhabha Centre for Science Education (HBCSE). Read More....
Homi Bhabha Centre for Science Education(TIFR)
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