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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..
Question: Which of the following compounds has the highest boiling point?Options: CH4C2H6C3H8C4H10Co..
Question: What is the value of R (ideal gas constant) in L·atm/(K·mol)?Options: 0.08218.31462.360.08..
Question: Which of the following is not a state function?Options: EnthalpyInternal EnergyHeatGibbs F..
Question: What is the total number of atoms in one molecule of C4H10?Options: 410148Correct Answer: ..
Question: Which of the following is a strong acid?Options: HClCH3COOHH2CO3NH3Correct Answer: HClSolu..
Question: What is the pH of a neutral solution at 25°C?Options: 07141Correct Answer: 7Solution: At 2..
Question: Which of the following represents the correct relationship between moles and mass?Options:..
Question: What is the empirical formula of glucose (C6H12O6)?Options: C6H12O6CH2OC3H6O3C2H4O2Correct..
Question: Which of the following is a correct statement about the law of conservation of mass?Option..
Question: What is the molar mass of water (H2O)?Options: 16 g/mol18 g/mol20 g/mol22 g/molCorrect Ans..
Question: Which quantum number is associated with the orientation of an orbital?Options: Principal q..
Question: What is the maximum number of orbitals in a subshell with l = 3?Options: 3579Correct Answe..
Question: Which of the following quantum numbers can have a negative value?Options: nlm_lm_sCorrect ..
Question: What is the spin quantum number (m_s) for an electron?Options: 0+1/2-1/2Both +1/2 and -1/2..
