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