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JKBOSE GENERAL ENGLISH: Solved Model Question Paper for Class 10th NCERT (2023)

GRAMMAR
Marks Symphony Public School organized (a) ___________________(a, an, the , same) workshop (b) _______________(on, with, by, in) drawing painting recently. Representatives (c)_________(from, with, by, in) the institute (d) __________________(gave, give, has given, had given) presentations (e) _____________(in, on with, by) various courses offered and tips for better painting. (f)____________(many, more, some, all) students from neighbouring schools attended (g) _______________(the, a, an, that) workshop and (h) ___________________(learnt, has learnt, had learnt, learn) useful tips.
Answer:
a) a
b) on
c) from
d) gave
e) on
f) many
g) the
h) learnt

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JKBOSE GENERAL ENGLISH: Solved Model Question Paper for Class 12th GENERAL ENGLISH NCERT/CBSE (2023)

Global warming is one of the most pressing issues facing the world today. It is a phenomenon that is causing drastic climatic changes in many parts of the world, resulting in a severe threat to the planet. It is believed that global warming is primarily caused due to the release of greenhouse gases, such as carbon dioxide, into the atmosphere. The rising temperatures due to global warming have made the weather patterns unpredictable, leading to extreme weather conditions like droughts, floods, and hurricanes. The melting of polar ice caps, rising sea levels, and the loss of biodiversity are some of the major consequences of global warming. Several precautionary measures have been taken by different countries to fight the problem of global warming. These include reducing emissions of greenhouse gases, promoting the use of renewable energy sources, and encouraging sustainable development. Governments have also launched various initiatives to increase awareness about the dangers of global warming and the need to take preventive measures. In addition, many organizations are working towards combating global warming. They are taking steps to plant trees, reduce the use of fossil fuels, and conserve water. They are also striving to raise funds to support research projects related to global warming and to provide financial assistance to those affected by its effects.

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JKBOSE Chemistry: Solved Previous Year’s Question Paper for NCERT/CBSE  Class 12th Chemistry Paper Code (HSEIIRKO-9318–C)

Question: Define Geometric Isomerism
Answer: Geometric isomerism is a type of stereoisomerism that occurs when two or more molecules have the same molecular formula and molecular structure, but the spatial arrangement of atoms within the molecule differs. This type of isomerism is most common in compounds with double bonds, but can also occur in compounds with single bonds.

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JKBOSE Chemistry: Solved Previous Year’s Question Paper for NCERT/CBSE  Class 12th Chemistry Paper Code (HSEIIRKO-45018–B)

Question:  Why phenols are acidic.
Answer: Phenols are acidic in nature because they contain an electrically charged group of atoms called a hydroxyl group (–OH). This group can easily donate a proton (H+) when exposed to a base, making the molecule more acidic.

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Chemistry: Solved Previous Year’s Question Paper for NCERT/CBSE Class12th Chemistry Paper Code (HSEIIRKO-13-Y)

The boiling point of halo-alkanes are in the order
Answer: 1. Methane (CH4) 2. Ethane (C2H6) 3. Propane (C3H8) 4. Butane (C4H10) 5. Pentane (C5H12) 6. Hexane (C6H14) 7. Heptane (C7H16) 8. Octane (C8H18) 9. Nonane (C9H20) 10. Decane (C10H22)

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Chemistry: Solved Previous Year’s Question Paper for NCERT/CBSE Class 12th Chemistry Paper Code (HSEIIRKO-13-X)

Chemistry: Solved Previous Year’s Question Paper for NCERT/CBSE Class 12th Chemistry Paper Code (HSEIIRKO-13-X) Long Answer Type Questions (Each carries 5 Marks) Question: Discuss briefly the oxidation states of the 3d-transition series. Answer: The 3d-transition series is composed of elements from the fourth period of the periodic table, including scandium (Sc), titanium (Ti), vanadium (V), chromium

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Chemistry: Solved Previous Year’s Question Paper for NCERT/CBSE  Class 12th Chemistry Paper Code (HSEIIRKO-13)

Define Calcination? Give an Example?
Answer: Calcination is the process of heating a solid substance to a high temperature to drive off its volatile components or to achieve a desired chemical or physical change. An example of calcination is the process of roasting gypsum to produce plaster of Paris.

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