591. Which among the following acids is abundant in Grapes, Bananas and Tamarind? October 4, 2025 by Admin A. Lactic Acid B. Oxalic Acid C. Salicylic Acid D. Tartaric Acid β The correct answer is option D.
592. To keep the hot glass itemβs finishing and transparency , they go through a process called annealing. This process involves _______? October 4, 2025 by Admin A. cooled rapidly B. cooled very slowly C. cooled slowly and uniformly under controlled environment D. heating rapidly β The correct answer is option C.
593. Which among the following are constituents of Brass? October 4, 2025 by Admin A. Zinc and Copper B. Iron and Zinc C. Copper and Nickel D. Iron and Copper β The correct answer is option A.
594. Water at 4 degree centigrade has____? October 4, 2025 by Admin A. minimum density B. maximum density C. No density D. None of the above β The correct answer is option B.
595. Identify the non-metallic mineral from the given options: October 4, 2025 by Admin A. Manganese B. Magnesium C. Silica D. Bauxite β The correct answer is option C.
596. Which among the following is not a use of Graphite? October 4, 2025 by Admin A. making of electrodes B. lubricant C. manufacturing of crucibles, D. Glass cutting β The correct answer is option D.
597. Which among the following is called Laughing Gas popularly? October 4, 2025 by Admin A. Nitric oxide B. Nitrous oxide C. Nitrogen penta oxide D. Nitrogen β The correct answer is option B.
598. Which of the following group characterizes alcohols? October 4, 2025 by Admin A. OH group B. COOH group C. COO group D. CO group β The correct answer is option A.
599. White Phosphorous is represented by which among the following symbols? October 4, 2025 by Admin A. P1 B. P2 C. P3 D. P4 β The correct answer is option D.
600. Sodium Alkyl Sulphate and Benzene Sulphate are examples of ________ October 4, 2025 by Admin A. Explosives B. Insecticides C. Fungicides D. Synthetic Detergents β The correct answer is option D.