Which of the following statements are correct?
(A) Beryllium forms covalent compounds due to small size and high charge of the `Be^2+` ion
(B) The maximum coordination number of beryllium is six.
(C) the maximum coordination number of beryllium is four.
(D) Beryllium salts are extensively hydrolysed.

Which of the following statements is correct regarding redox reactions ? (A)An increase in oxidation number of an element is called reduction (B)A decrease in oxidation number of an element is called oxidation. (C)A reagent which lowers the oxidation number of an element in a given substance is reductant. (D)A reagent which increases the oxidation number of an element in a given substance is reductant

Which of the following coordination compounds has maximum number of isomers ?

Which of the following set is having correct statements? 1. Molecular crystals are hard in nature 2. Silicon carbide is a covalent crystal 3. Increase in radius ratio result in increase in coordination number 4. In calcium fluoride structure, coordination number of Ca^(2+) is 4

Which of the following elements shows maximum number of different oxidation states in its compounds ? (a)Eu (b)La (c)Gd (d)Am

Number of the following statements is/are correct? (A) Greater the stability constant of a complex ion, greater is its stability (B) Greater the oxidation state of the central metal ion, greater is the stability of the complex (C ) CO stabilises complex becuase of its synergic Bonding. (D) Chelate complexes have low stability constants

Which one of the following statements is correct? (a) Fertilization in human takes place in womb (b) Zygote contains haploid number of chromosomes (c) Fertilization membrane avoids polyspermy (d) Primary oocyte inhibits the process of oogenesis

Carbon and silicon belong to group IV . The maximum coordination number of carbon in commonly occuring compounds is four whereas that of silicon is six. This is due to

Carbon and silicon belong to group IV . The maximum coordination number of carbon in commonly occuring compounds is four whereas that of silicon is six. This is due to

Assertion (A): Beryllium compounds are covalent in nature. Reason (R ): The size of Be^(2+) ion is larger in compariso to the radii of the other divalent ions of alkaline earth metals.

A complex cation is formed by Pt( in some oxidation state ) with ligands ( in proper number so that coordination number of Pt becomes six ). Which of the following can be its correct IUPAC name ?