Addition of 2nd electron to a uni negative ion is always____________________?

Related Mcqs:

1. When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is______________?

   A. 0.33 nm B. 0.34 nm C. 0.35 nm D. 0.36 nm...

2. Product of Nucleophilic Substitution Uni Molecular reaction is in case of chiral substrate?

   A. Inversion B. Retention C. Recemic Mixture D. Stereospecific Submitted by: Safeullah Bullo...

3. Which of the following ion is stable in aqueous solution ?

   A. H+ B. H- C. Cl- D. All are stable...

4. Which of the following ion formation is always exothermic ?

   A. Uni-negative B. Uni-positive C. Di-negative D. Di-positive...

5. A solution has pH = 0 its H+ ion concentration is__________________?

   A. 1 x 10-1 B. 1 x 10-14 C. 1 x 10-7 D. 1...

6. The compound or complex ion which has a ring in its structure__________________?

   A. polydentate ligand B. chelate C. monodentate ligand D. hydrate...

7. Tetrahydroborate ion is the source of_______________?

   A. proton B. H+ C. both A & amp; B D. H-...

8. Nitronium ion is___________________?

   A. NO3 B. NO C. NO2- D. NO2+...

9. Which element can form tripositive ion ?

   A. Beryllium B. Carbon C. Silicon D. Aluminium...

10. Oxalate ion behaves as a ________ ligand.

    A. Unidentate B. Bidentate C. Tridentate D. Hexadentate Submitted by: Aamir khan Hullio...