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Chemistry Quiz 10

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Chemistry Quiz 10

1 / 50

Which one of the following is not the mono isotopic element ?

2 / 50

Wavelength of electron was verified by_________________?

3 / 50

which Compound Destroy The OZONE ?

4 / 50

The by-product of the process of Saponification is___________?

5 / 50

Which one of the following makes the bulk of hydrospheres content ?

6 / 50

The value of activation energy is primarily determined by_______________?

7 / 50

One fathom is equal to:__________?

8 / 50

Formula of Chile saltpetre is__________________?

9 / 50

Shielding effect across the period ________________?

10 / 50

Free neutron changes into proton with the emission of__________________?

11 / 50

Group VIB of transition elements contains___________________?

12 / 50

The rate of E1 reaction depends upon______________________?

13 / 50

I3( Tri-iodine) has shape_________?

14 / 50

Which of the following aldehydes shows rapid reaction with sodium nitroprusside ?

15 / 50

Which one is false for evaporation ?

16 / 50

Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is_________________?

17 / 50

In CCI4 I2 shows________________?

18 / 50

The volume strength of 1.5 N H2O2 solution is_______?

19 / 50

Enzynies that catalyze the transfer of groups within molecule are called_________________?

20 / 50

If R is the Rydberg constant for hydrogen, then wave-number of the second line in the Lyman series is _________?

21 / 50

In solvent extraction ether is used to separate products of organic synthesis from________________?

22 / 50

Bleaching powder is not used for bleaching________________?

23 / 50

Sharing of 1 electron pair by one specie forms_________________?

24 / 50

What is the relative rate of effusion of CO and CO2 ?

25 / 50

Which one of the following salt does not hydrolyzed________________?

26 / 50

Which order of reaction obeys the relation t1/2 = 1/Ka____________________?

27 / 50

Which one exhibits aldol condensation____________________?

28 / 50

For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?

29 / 50

Which one of the following is a buffer solution ?

30 / 50

Which of the following is used as water disinfectant to avoid the formation of toxic compounds_________________?

31 / 50

Electron was discovered by?

32 / 50

Which of the following will not form crystalline structure with opporitely charged ions_________________?

33 / 50

Commercial detergents contain mainly _____________?

34 / 50

The element used for the formation of alloys is__________?

35 / 50

Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?

36 / 50

Avogadros number may represent_________________?

37 / 50

Hydrogen bonding is involved in____________________?

38 / 50

The oxides of beryllium BeO is_______________?

39 / 50

A compound is determined to have an emperical formula of C2H6O and a molar mass of 138 g/mole. What is the molecular formula?

40 / 50

Geometry of molecule will be pyramidal if the outer post shell of the central atom has___________________?

41 / 50

Splitting of spectral lines when atoms are subjected to strong electric filed is called_________________?

42 / 50

Which of the following will not change the concentration of ammonia at the equilibrium ?

43 / 50

Spectrum is produced due to________________?

44 / 50

Solubility of KCIO3 gives__________________?

45 / 50

Oxygen does not react with all except_________________?

46 / 50

Organic compounds that are essentially nonpolar and exhibit weak intermolecular forces have________________?

47 / 50

Ideal gasses have all the following characteristics except ?

48 / 50

Which of the following is incorrect statement about nitrogen importance ?

49 / 50

The element cesium bears resemblance with________________?

50 / 50

Acid present in acid rain may be_________________?

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