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Entry Test MCQ :: Diagnostic Test


31.  Which is the unit of (K) rate constant for zero order reaction?
A. s-1 B. mol dm-3 s-1
C. mol-1 dm3 s-1 D. mol-2 dm6 s-1

32.  Nitrates of which pair gives different products on thermal decomposition
A. Na K B. Mg Ca
C. Li Na D. Li Ca

33.  Which is carnalite
A. KCI B. NaCI
C. KCI MgCl2 6H2O D. Na2CO3. 10H2O

34.  Keeping in view the size of atom which is in correct order
A. Mg > Sr B. Ba > Mg
C. Lu > Ce D. CI > 1

35.  Which one does not give borax bead test
A. Copper sulphate B. Barium sulphate
C. Cobalt sulphate D. Nickel sulphate

36.  Which one is not the use of silicones
A. Lubricant B. Water repellent film
C. Rubber sheet D. Medicine

37.  The most reactive allotropic form of phosphorus is
A. White B. Redox potential
C. Black D. Violet

38.  Chemical composition of cinnabar is
A. FeS2 B. HgS
C. PbS D. ZnS

39.  Which molecule has the highest bond energy among the halogens
A. Fluorine B. Chlorine
C. Iodine D. Bromine

40.  When chlorine is passed through hot solution of caustic soda the reaction is said as
A. Displacement B. Reduction
C. Disproportionation reaction D. Double displacement reaction




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