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🏝⛲️🏝*MOST IMPORTANT CHEMISTRY QUESTIONS*🏝⛲️🏝 ══════════════════♢.✰.♢════════════════════ 🔺🔺66. Who proposed that atom is indivisible? – Dalton 🔺🔺67. A typical example of a semiconductor is – Germanium 🔺🔺68. What is the maximum number of electrons that a p-orbital can hold – 6 🔺🔺69. What is used in fire extinguisher – Sodium bicarbonate 🔺🔺70. What is the nature of metal oxides – Basic 🔺🔺71. Which gas burns with popping sound – Hydrogen 🔺🔺72. Which metal is used for galvanization – Zinc 🔺🔺73. What is the nature of bleaching powder – Oxidising agent 🔺🔺74. Which is stored in Kerosene – Sodium 🔺🔺75. Phenolphthalein gives which color in acidic medium – Colorless 🔺🔺76. Which gas is used in cigarette lighters? – Butane 🔺🔺77. Biogas chiefly contains __ . – Methane #REVISION #IMPORTANT ✍️✍️CREDIT:-Krushna⭐️⭐️ 🏝🏝© Join Now:: @Daily_Science_Computer_Notes

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🏝🔰Vitamin➖ Deficiency disease🔰🏝 ✧═════════• ❁❀❁ •══ ═ ══ ══ ════✧ 💠A➖ Night blindness 🌐B1➖ Beriberi 💠B2 ➖Ariboflavinosis 🌐B3 ➖Pellagra 💠B5➖ Paresthesia 🌐B6➖ Peripheral neuropathy 💠B7 ➖Dermatitis 🌐B9➖ Megaloblast and birth defects in pregnant ladies 💠B12 ➖Megaloblastic anemia 💠C➖ Scurvy 🌐D ➖Rickets and Osteomalacia 🌐E➖ anemia 💠K➖ Bleeding diathesis #IMPORTANT_FOR_COMING_EXAMS🤞🤞 ✍️✍️CREDIT:-Krushna⭐️⭐️ 🏝🏝© Join Now:: @Daily_Science_Computer_Notes

🔷1. (A) Ultraviolet rays are mainly used to find out invisible handwritings, forged documents and fingerprints 🔶2. (B) The property of a body when it resists any change in its motion in a straight path or at rest, is called Inertia. 🔷3. (B) Aqua regia is used to dissolve noble metal like gold and platinum. 🔶4. (D) Octopus is also known as Devil fish. 🔷5. (D) The body part which is most affected by typhoid is intestine. 🔶6. (B) The halogen which is most reactive is fluorine. 🔷7. (B) Sodium benzoate is used for the preservation of foods. 🔶9. (D) Liver is responsible for the production of urea. 🔷8. (C) Rearing of silk worm for the production of silk is called Sericulture. 🔶10. (A) Radioactive Iodine is used for the treatment of Thyroid disease. 🔷11. (C) The chemical substance which is found in tobacco is nicotine. 🔶12. (A) White blood corpuscles are mainly affected in leukemia. 🔷13. (A) Cyclotron is a device which provides energy charged particles. 🔶14. (C) “Fleming’s left–hand rule” is used to determine the direction of current motion in magnetic field. 🔷15. (D) Medulla oblongata is associated with the beats of lungs and heart. #Revision ✍️✍️CREDIT:-Krushna⭐️⭐️ 🏝🏝© Join Now:: @Daily_Science_Computer_Notes