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Previous Year Questions [Chemistry] SOLUTIONS

  Previous Year Questions   Chapter :Solutions  1.   What are collocation properties ?write Colligative property which is used to find the molecule mass of macromolecules .(2) 2.   A solution of Glucose in the molar mass =  180 gram per mole in water has a boiling point of 100.20 degree Celsius. Calculate the freezing point of the same solution. Molal constants for water Kf and Kb 1.86 K kg per mole and 0.512 K kg per mole respectively (3)  3.       Define the following terms: 1)       abnormal molar mass  2)        van’t Hoff Factor (i) 4.       A 10% solution of sucrose in water has freezing point of 269.15 K. calculate the freezing point of 10% glucose in water if freezing point of pure water is 273.15 K. 5.    Calculate the freezing point of a solution containing 60 gram of glucose in 250 gram of water.[Kf =1.86 Kkg/mol ]...

Turmeric, Golden spoce

 Title: Unveiling the Golden Spice: The Many Health Benefits of Turmeric Introduction: Turmeric, a bright golden spice, has been used for centuries in traditional medicine and cuisine. It's renowned for its vibrant color, distinctive flavor, and a wide range of health benefits. In this blog, we'll dive into the many advantages of turmeric, from its powerful anti-inflammatory properties to its potential in disease prevention. 1. Anti-Inflammatory Powerhouse: One of the most well-known benefits of turmeric is its potent anti-inflammatory properties. Curcumin, the active compound in turmeric, is responsible for this. It helps combat inflammation at the molecular level, making it effective in managing conditions like arthritis, osteoarthritis, and other inflammatory disorders. 2. Antioxidant Superstar: Turmeric is also a robust antioxidant. Antioxidants help the body fight free radicals, which can cause cellular damage and contribute to various chronic diseases, including cancer an...

Neem and Rheumatoid Arthritis

 Neem, scientifically known as Azadirachta indica, has been used in traditional medicine systems, such as Ayurveda, for various health conditions, including rheumatoid arthritis. While neem is not a cure for rheumatoid arthritis, it does have some properties that may be beneficial for individuals with this condition: 1. **Anti-Inflammatory Properties:** Neem contains compounds like nimbidin and nimbin, which have anti-inflammatory properties. Inflammation is a key component of rheumatoid arthritis, and reducing inflammation can help alleviate symptoms. 2. **Pain Relief:** Neem's analgesic (pain-relieving) properties may provide relief from the pain associated with rheumatoid arthritis. 3. **Immune System Modulation:** Rheumatoid arthritis is an autoimmune disease where the immune system mistakenly attacks the body's own tissues. Some studies suggest that neem may help modulate the immune system, which could be beneficial for autoimmune conditions. 4. **Antioxidant Effects:** Ne...

Benefits of Neem( Azadirachta indica).

 Title: Harnessing the Power of Neem: A Natural Wonder Introduction: Nature has always been a treasure trove of solutions for various ailments and health concerns. Neem, scientifically known as Azadirachta indica, stands out as a shining example of the incredible benefits that nature provides. Native to the Indian subcontinent, neem has been revered for its numerous medicinal, culinary, and cosmetic applications for centuries. In this blog, we will explore the diverse benefits of neem and why it deserves a place in your daily life. 1. **Powerful Antioxidant Properties:**    Neem is packed with antioxidants that combat free radicals in the body. These antioxidants help in preventing cell damage and reducing the risk of chronic diseases. 2. **Boosts Immunity:**    Regular consumption of neem helps strengthen the immune system. Neem contains compounds that stimulate the production of immune cells and enhance their activity, making the body more resilient against in...

Be real

    When people think you weak,become strong  They think to ruin you,forgets they can be ruined They think they can snatch your wealth Forget theirs can be snatched They can’t be God  We can’t be angles  They can be rude  We can’t be humble They can humiliate  We can’t respect They make wicked plans  Show them their Hypocritical faces They can be your boss  You can’t be their slave  

Atoms and molecules

  Atoms and molecules   Matter:Anything that occupies space and have mass is called matter. All matter is made up of small particles called atoms and molecules. Different kinds of atomshave different properties due to which different kinds of matter also show different properties.   Laws of chemical combination: 1.Law of conservation of mass: Matter can neither be created nor be destroyed in a chemical reaction. In a chemical reaction:The substances written on the left hand side are known as reactants whereas the new substances formed and written on the right hand side of the reaction are known as products. A+B  —————>  C+ D Reactants             Products  Hence the Law of conservation of mass can be defined as: In a chemical reaction, the total mass of products is equal to the total mass of reactants. There is no change in mass during a chemical reaction.  CaCO 3  ——————> CaO+...

Question Answers of matter in our surrounding

Q1 . How melting point of a substance indicates the strength of of its intermolecular forces of attraction Ans: More strong is the force of attraction more energy is required to break 20 forces of a fraction hence the substance which has high melting point indicates that its particles are tightly packed. Q2. Suggest a method to liquefy gases Ans: By applying pressure and reducing temperature. Q3. Define latent heat of vaporization Ans: latent heat of vaporization is defined as the heat energy required to change 1 kg of a liquid to gas at atmospheric pressure at its boiling point. Q4. Define latent heat of fusion Ans:It is defined as the heat required to change 1 kg of solid to liquid at its melting point. Q5. When a solid melts its temperature remains the same so where does the heat energy go? Ans: During the experiment of melting the temperature of the system does not change even after the melting point is reached till all the ice melts. This happens even though we contin...