List of practice Questions

In face centred cubic unit cell, edge length is

In fcc arrangement of A and B atoms, where A atoms are at the corners of the unit cell, B atoms at the face centres. Two atoms are missing from two corners in each unit cell, then the simplest formula of the compound is

In ferrous ammonium sulphate oxidation number of Fe is

In fibrous proteins, polypeptide chains are held together by

In electrorefining the impure metal is made

In endarch condition of xylem, protoxylem lies ____ of metaxylem.

In epigynous flowers

In electrochemical corrosion of metals, the metal undergoing corrosion

In electrolysis of dilute $H_2SO_4$, what is liberated at anode ?

In electrometallurgy of aluminium, what will happen if graphite rods are not used as anode and are replaced by some other metal?

In $DNA$ strand, the nucleotides are linked together by

In electro-refining of metal the impure metal is made the anode and a strip of pure metal the cathode during the electrolysis of an aqueous solution of a complex metal salt. This method cannot be used for refining of

In diamond, each carbon atom is bonded to four other carbon atoms tetrahedrally. The number of carbon atoms per unit cell is

In diborane, banana bond is formed between

In dicot stems, cambium present between primary xylem and primary phloem is

In dilute aqueous solution HF is a weaker acid than HI because

In comparing Dows process and Raschigs the common factor is

In computing a measure of the central tendency for any set of 51 numbers, which one of the following measures is well-defined but uses only very few of the numbers of the set?

In crystal structure of sodium chloride, the arrangement of $Cl^-$ ions is

In $CsCl$ type structure, the co-ordination number of $Cs^+$ and $Cl^-$ respectively are :

In Cuscuta the nodes give rise to special roots which penetrate the host tissue upto

In chromium chloride $ {(CrCl_{3}), Cl^{-}}$ ions have cubic close packed arrangement and $ {Cr^{3+}}$ ions are present in the octahedral holes. The fraction of the total number of holes occupied is

In colloidal state, particle size ranges from

In case of alkaline earth metals, the oxidation state of more than two is not observed because

In case of the hydrides $H_2O, H_2S, H_2Se$ and $H_2$ Te the acid strength of aqueous solution of equimolar concentration