Latest NDA Aptitude Question SOLUTION: Which one among the following equations is correctly balanced ? (A) NaOH + Al + H2O → 2H2 + NaAlO2 (B) 2NaOH + 2Al + 2H2O → 3H2 + 2NaAlO2 (C) 2NaOH + 2Al + 3H2O → 4H

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Previous Question: The most important raw material used in the manufacture of cement are (A) Potassium nitrate, charcoal and sulphur (B) Limestone, clay and gypsum (C) Transition metal oxides, sodium hydroxide or potassium hydroxide (D) Limestone, sodium carbonate and silica Next Question: Three elements Na, S and O combine to from a compound Na2SO6. What is the valency of S this compound ? (A) 2+ (B) 4+ (C) 6+ (D) 8+

(#M40026884) NDA question General Ability Test-2012 Keep an EYE

Which one among the following equations is correctly balanced ?
(A) NaOH + Al + H2O → 2H2 + NaAlO2
(B) 2NaOH + 2Al + 2H2O → 3H2 + 2NaAlO2
(C) 2NaOH + 2Al + 3H2O → 4H2 + 2NaAlO2
(D) 2NaOH + 2Al + H2O → H2 + 2NaAlO2: Asked In NDA MAN (11 years ago); Unsolved Read Solution (1); Is this Puzzle helpful? (2) (0) Submit Your Solution

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Previous Question: The most important raw material used in the manufacture of cement are (A) Potassium nitrate, charcoal and sulphur (B) Limestone, clay and gypsum (C) Transition metal oxides, sodium hydroxide or potassium hydroxide (D) Limestone, sodium carbonate and silica Next Question: Three elements Na, S and O combine to from a compound Na2SO6. What is the valency of S this compound ? (A) 2+ (B) 4+ (C) 6+ (D) 8+

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