The Solvay process is used for the manufacture of:
A. Sodium carbonate
B. Nitric acid
C. Sulfuric acid
D. Ammonia
Answer: Option A
Solution (By JKExamLibrary)
The Solvay process (or ammonia-soda process) is the major industrial process for the production of sodium carbonate (soda ash, Na2CO3). It uses brine (NaCl) and limestone (CaCO3) as raw materials, with ammonia acting as an intermediate that is recovered and recycled.
Explanation:
Potassium (K) is at the top of the reactivity series, meaning it is the most reactive among the given metals. The order of reactivity (decreasing): K > Na > Ca > Mg > Al > Zn > Fe > Pb > Cu > Ag > Au. Potassium reacts violently with water and oxygen. Copper (Cu) is relatively unreactive and is found native in nature. Exam trick: Remember 'Please Stop Calling Me A Cute Zebra...' mnemonic.
Explanation:
CH₃CH₂OH is ethyl alcohol or ethanol. Methanol is CH₃OH. Propanol C₃H₇OH. Butanol C₄H₉OH. Ethanol is the active ingredient in alcoholic beverages and used as biofuel.
Explanation:
Baking powder = sodium bicarbonate + weak solid acid (usually tartaric acid or cream of tartar). On moistening, they react to produce CO₂, causing dough to rise without requiring external acidic ingredient.
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