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Question: What type of hybridization is present in the carbon atom of ethylene (C2H4)?Options: spsp2..
Question: Which of the following molecules has a linear shape?Options: CH4H2OCO2NH3Correct Answer: C..
Question: What is the bond angle in a tetrahedral molecule?Options: 90 degrees120 degrees109.5 degre..
Question: Which of the following types of bonds involves the sharing of electron pairs between atoms..
Question: What is the empirical formula of a compound containing 40% carbon, 6.7% hydrogen, and 53.3..
Question: In the reaction 2H2 + O2 → 2H2O, how many grams of oxygen are required to react with 4 gra..
Question: What volume of 0.5 M NaOH solution contains 1 mole of NaOH?Options: 1 L2 L0.5 L0.25 LCorre..
Question: How many grams of KCl are needed to prepare 0.5 moles of KCl solution? (Molar mass of KCl ..
Question: In the reaction 4Fe + 3O2 → 2Fe2O3, how many moles of Fe2O3 are produced from 12 moles of ..
Question: What is the mass of 3 moles of carbon dioxide (CO2)?Options: 44 g66 g132 g22 gCorrect Answ..
Question: If 5 moles of NaCl are dissolved in water, how many moles of Na+ ions are present?Options:..
Question: In the reaction 2H2 + O2 → 2H2O, how many moles of water are produced from 4 moles of hydr..
Question: Which of the following is a common method for ensuring data consistency in a data warehous..
Question: What does the term \'data latency\' refer to in a data warehouse?Options: The speed of dat..
Question: What is the primary function of OLAP in data warehousing?Options: To perform online transa..
Question: Which of the following best describes a data mart?Options: A large-scale data warehouseA s..
Question: What is the role of indexing in a data warehouse?Options: To ensure data integrityTo speed..
Question: Which of the following is NOT a benefit of data warehousing?Options: Improved data quality..
Question: What is a star schema in data warehousing?Options: A type of data normalizationA database ..
Question: In the context of data warehousing, what does ETL stand for?Options: Extract, Transform, L..
Question: What is the mass of 0.5 moles of CaCO3?Options: 50 g25 g100 g75 gCorrect Answer: 25 gSolut..
Question: What is the number of atoms in 2 moles of Na2SO4?Options: 6.022 x 10^231.2044 x 10^241.204..
Question: How many moles are in 50 grams of H2O?Options: 2.781.390.563.06Correct Answer: 1.39Solutio..
Question: What is the volume of 4 moles of an ideal gas at STP?Options: 22.4 L44.8 L89.6 L112 LCorre..
Question: How many grams are in 0.25 moles of KCl?Options: 35 g70 g17.5 g140 gCorrect Answer: 70 gSo..
Question: What is the number of moles in 180 grams of glucose (C6H12O6)?Options: 120.53Correct Answe..
Question: If 1 mole of a gas occupies 22.4 L at STP, how much volume will 0.5 moles occupy?Options: ..
Question: What is the mass of 3 moles of NaCl?Options: 87 g58.5 g174 g3 gCorrect Answer: 174 gSoluti..
Question: How many molecules are present in 2 moles of water (H2O)?Options: 6.022 x 10^231.2044 x 10..
Question: What is the number of moles in 44 grams of CO2?Options: 120.50.25Correct Answer: 1Solution..