1. The aqueous solution of potassium chloride is A. a weak electrolyte B. a strong electrolyte C. a non-electrolyte D. initially weak and then become a strong electrolyte 2. An acid is a substance that can lose a proton is called A. Arrhenius concept B. Bronsted-Lowry concept C. Lewis concept D. Usanovich concept 3. Which of the following is a wrong statement? A. All the minerals are not ores B. All the ores are not minerals C. All the ores are minerals D. From ores, metals can be extracted economically 4. Which of the following is correct? The term systole refers to I. Phase of contraction of lungs. II. Phase of relaxation of lungs. III. Phase of relaxation of heart. IV. Phase of contraction of heart. A. I and II only B. II and III only C. II only D. IV only 5. Choose the correct answer from the codes given below. Assertion A. : The pyramid of grassland ecosystem is upright. Reason (R): The producers are maximum in number and tertiary consumers are least in number. A. (A) and (R) are correct B. (A) alone is correct C. (R) alone is correct D. A. is correct (R) is not the reason for A. 6. List out the following Bahmani rulers in chronological order and mark the correct choice: I. Alauddin Bahman Shah II. Muhammad Shah III III.Ahmad Shah IV. Firuz Shah A. I, III, IV, II B. I, IV, III, II C. IV, I, III, II D. IV, I, II, III 7. The twenty-second Tirthankara of Jainism was A. Rishabha B. Badrabhagu C. Parsva D. Neminatha 8. Who constructed a canal of 150 miles from Yamuna to Hissar for agricultural purpose? A. Qutb-ub-din-Aibak B. Firoz Shah Tughlaq C. Khizir Khan D. Sikandar Lodi 9. The villages Raksas and Tagdi related to which battle? A. Battle of Tahkotta B. Battle of Takkolam C. Battle of Panipat 1761 D. Battle of Adayar 10. Which is not correctly matched? A. RahmatAli - Pakistan B. Vinoba Bhave - Second Individual Satyagrahi C. Linlithgow - August Offer D. Rajaji - Kulakalvi Thittam
