Multiple choice

Identify the false statements. P. Hydrazine is a colourless gas and is used as a rocket fuel. Q. PCl3 has more Lewis acid strength than PI3. R. H2S has T-shaped geometry. S. The sulphur atom exhibits +3 oxidation state in sodium dithionate.

  1. P and Q

  2. Q and R

  3. R and S

  4. P and S

  5. P, R and S
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

P. Hydrazine is an inorganic compound with the formula N2H4. It is a colourless flammable liquid with an ammonia-like odor and is used as rocket fuel. Q. In the case of PX3, Lewis acid strength decreases in the order of; PF3>PCl3>PBr3>PI3. So, PCl3 has more Lewis acid strength than PI3.
R. H2S has sp3 hybridisation and 2 lone pairs with V-shaped geometry. S. The oxidation state of sulphur atom in sodium dithionate is +5. Hence, P, Q and R are false.

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