The p-Block Elements questions
1863 published questions with worked solutions.
- Bone black is a polymorphic form of [DCE 2003]
- Two oxides of nitrogen, NO and NO_2, react together at 253 ,K and form a compound of nitrogen X. X reacts with water to yield...
- Which is the incorrect statement for pyrophosphorous acid, H_4P_2O_5? [BITSAT 2005]
- The most unstable hydride among the following is
- H_3PO_3 is
- The atomicity of phosphorus is X and the P-P-P bond angle in the molecule is Y. What are X and Y? [DCE 2008]
- Dinitrogen pentoxide, a colourless solid, is prepared by [BITSAT 2005]
- Phosphorus pentoxide is widely used as a [Guj CET 2010]
- N_2 forms NCl_3, whereas P can form both PCl_3 and PCl_5. Why? [OJEE 2004]
- The correct order of reducing ability of hydrides of group V (15) elements is [BITSAT 2008, EAMCET 2008, AMU 2008]
- As the number of -OH groups increases from hypophosphorous acid to phosphoric acid to phosphorous acid, the acidic strength...
- Which element of the nitrogen family produces the maximum number of oxy-acids?
- Pnicogens are the elements of group
- Hydrolysis of NCl_3 gives NH_3 and X. Which of the following is X?
- H_3PO_3 has ...... non-ionisable P-H bonds [OJEE 2008]
- Which form of phosphorus reacts with KOH solution to produce phosphine gas? [WB-JEE 2006]
- White phosphorus is [DCE 2005]
- The correct order of acidic nature of oxides is in the order [OJEE 2008]
- What are the products obtained when ammonia is reacted with excess chlorine? [WB-JEE 2007]
- If NO_2(N_2O_4) is dissolved in NaOH, we get a solution of [Indraprastha CET 2009, CG PET 2009]
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