✅ (d) CaSO₄ · 2H₂O: • This is the chemical formula of gypsum, also known as calcium sulfate dihydrate. • Used to reclaim sodic soils by replacing sodium ions with calcium. • Appears as a white, powdery material commonly applied in agriculture.
❌ (a) CaSO₄: • This is an anhydrous form (without water), not true gypsum.
❌ (b) CaSO₄ · ½ H₂O: • This is known as Plaster of Paris, not gypsum.
❌ (c) CaSO₄ · 5H₂O: • This form does not exist as gypsum.
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45 Mins English English100 Questions100 Marks120 Mins English English100 Questions100 Marks120 Mins EnglishThe WHO standard of drinking water for nitrate is
Emissivity of a black body is
The formula for Ethane is
The consumption of water containing high levels of nitrate–N can lead to
The common table sugar is
Deficiency of Vitamin A causes
Environmental Protection Act was enacted in the year
The spectral bands used in Greenness Vegetation Index are (A) Red (B) Blue (C) Green (D) NIR (E) MIR
Choose the correct answer from the options given below:
The building units of oligosaccharides and polysaccharides are
Suggested Test Series
Suggested Test Series
The WHO standard of drinking water for nitrate is
Emissivity of a black body is
The formula for Ethane is
The consumption of water containing high levels of nitrate–N can lead to
The common table sugar is
Deficiency of Vitamin A causes
Environmental Protection Act was enacted in the year
The spectral bands used in Greenness Vegetation Index are (A) Red (B) Blue (C) Green (D) NIR (E) MIR
Choose the correct answer from the options given below:
The building units of oligosaccharides and polysaccharides are
