A. Li B. Na C. K D. Rb
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A. Na B. Rb C. Li D. Cs
A. Be B. Mg C. Both D. None
A. Solubility of their hydroxide in water B. Solubility of their sulphates in water C. Ionisation energy D. Electronegativity
A. Water B. Alcohol C. Acetic acid D. Benzene
A. 7,15 B. 6,12 C. 9,17 D. 3,12
A. Converting sand into silicic acid B. Keeping it cool C. Developing inter locking needle like crystals of hydrated silicates D. Hydrating sand and general mixing with cement