Which of the following statements about nuclear reaction is correct? The reaction?
A. involves neutrons only B. takes place inside the nucleus C. is governed by temperature and pressure D. involves protons and electrons only Correct Answer: Option B B. takes place inside the nucleusNoble gas molecules are held together by?
A. van der Waals forces B. hydrogen bonds C. dative bonds D. covalent bonds Correct Answer: Option A A. van der Waals forcesWhich of the following elements is diatomic?
A. Sodium B. Oxygen C. Iron D. Neon Correct Answer: Option B B. OxygenThe volume of 0.25 moldm-³ solution of KOH that would yield 6.5g of of solid KOH on evaporation is (K = 39.0; o = 16.0; H = 1.00)
A. 464.30 cm³ B. 625.00 cm³ C. 1000.00 cm³ D. 2153.80 cm³ Correct Answer: Option A A. 464.30 cm³Products
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