What is the value of x in complex (CoCl .x H O). If its dissociate in same number of Ions with cryol — NEET Chemistry Past Papers Chemistry Question

Question

What is the value of x in complex (CoCl .x H O). If its dissociate in same number of Ions with cryolite in a aqueous solution ? (A) 3 (B) 4 (C) 5 (D) 6 3 2 (1) 3 (2) 4 (3) 5 (4) 6 3 2 Which of the following ion is tetrahedral and green coloured. (1) (2) (3) (4) MnO− 4 CrO2− 4 MnO2− 4 Cr2O2− 7 (1) (2) (3) (4) MnO− 4 CrO2− 4 MnO2− 4 Cr2O2− 7 Complex [Co(NH ) (NO )]Cl can show :- (1) Only ionisation isomerism (2) Only linkage isomerism (3) Both linkage and ionisation isomerism (4) Linkage and coordination isomerism 3 5 2 2 3 5 2 2 Assertion (A) :- [Fe(H O) ] is strongly paramagnetic whereas [Fe(CN) ] is weakly paramagnetic. Reason (R) :- In presence of strong field ligand H O, electrons get paired in [Fe(H O) ] while in weak field ligand CN , electrons don't pair up. (1) (A) is correct but (R) is incorrect. (2) (A) is incorrect but (R) is correct. (3) Both (A) and (R) are correct but (R) is not correct explanation of (A). (4) Both (A) and (R) correct and (R) is correct explanation of (A). 2 6 3+ 6 3– 2 2 6 3+ – 2 6 3+ 6 3– 2 2 6 3+ – 6 3– – Which of the following is different :- (1) As O (2) Cr O (3) Fe O (4) Al O 2 3 2 3 2 3 2 3 (1) As O (2) Cr O (3) Fe O (4) Al O 2 3 2 3 2 3 2 3 In which of the following more than one π bonds are present :- (1) O (2) B (3) C (4) P 2 2 2 4 (1) O (2) B (3) C (4) P 2 2 2 4 Which of the following metal react with NaOH to produce H :- (1) Mg (2) Ba (3) Zn (4) Cu 2 (1) Mg (2) Ba (3) Zn (4) Cu 2 1001OMD303029230152 PHASE - MOCK TEST-2