In the complex [Cr(OH)3(H2O)3] the coordination number is __________________?

Related Mcqs:

1. Isotopes differs in______________________?

   A. arrangement of electrons in orbitals
   B. position in the periodic table
   C. properties depend upon mass
   D. chemical properties

2. The molecules of CO2 in dry ice form__________________?

   A. Ionic crystal
   B. Covalent crystal
   C. Molecular crystal
   D. Any type of crystal

3. Which of the following can be used in laptops ?

   A. Silver oxide battery
   B. Fuel cell
   C. Nickel cadmium cell
   D. Lead accumulator

4. The most paramagnetic element is____________________?

   A. Iron
   B. Cobalt
   C. Chromium
   D. Manganese

5. Which one of the following looks odd__________________?

   A. H2SO4
   B. KMnO4
   C. H2S
   D. K2CrO4

6. Ethy1 chloride on reduction in the presence of Zn/HCI produces___________________?

   A. n. butane
   B. Ethanol
   C. Ethane
   D. Diethy1 ether

7. The number of atoms in a molecule determines________________?

   A. macromolecule
   B. macromolecule
   C. molecularity
   D. atomicity

8. Bohrs model is contradicted by__________________?

   A. Plancks theory
   B. Dual nature of matter
   C. Heisenbergs uncertainty principle
   D. All of these

9. Nitrates of which pair gives different products on thermal decomposition___________________?

   A. Na K
   B. Mg Ca
   C. Li Na
   D. Li Ca

10. Vinyl acetylene combines with hydrochloric acid produces___________________?

    A. Diviny1 acetylene
    B. Ethylidine dichloride
    C. Chloroprene
    D. 1 – 3 – 3 – trichloro butane