A Admin • 832.27K Points Coach Q. Which of the following is a thermosetting polymer? (A) Polythene (B) PVC (C) Bakelite (D) Nylon-6
A Admin • 832.27K Points Coach Q. The oxidation state of manganese in KMnO₄ is: (A) +4 (B) +5 (C) +6 (D) +7
A Admin • 832.27K Points Coach Q. Which of the following is used as an anti-knocking agent in petrol? (A) Methanol (B) Ethanol (C) Tetraethyl lead (D) Acetone
A Admin • 832.27K Points Coach Q. The total number of electrons in SO₄²⁻ ion is: (A) 46 (B) 48 (C) 50 (D) 52
A Admin • 832.27K Points Coach Q. Which of the following is an example of sublimation? (A) Melting of ice (B) Boiling of water (C) Heating of camphor (D) Condensation of steam
A Admin • 832.27K Points Coach Q. The gas evolved when sodium reacts with water is: (A) Oxygen (B) Hydrogen (C) Nitrogen (D) Chlorine
A Admin • 832.27K Points Coach Q. Which of the following is a non-polar molecule? (A) NH₃ (B) H₂O (C) CO₂ (D) SO₂
A Admin • 832.27K Points Coach Q. Which of the following has the highest electron affinity? (A) Fluorine (B) Chlorine (C) Oxygen (D) Nitrogen
A Admin • 832.27K Points Coach Q. The IUPAC name of HCHO is: (A) Methanal (B) Ethanal (C) Methanone (D) Methanoic acid