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Chemistry Quiz 17

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Chemistry Quiz 17

1 / 50

The gas used in manufacturing of urea fertilizer__________________?

2 / 50

The important function of burning zone in the rotary kilm is __________________?

3 / 50

How many zones through which the charge passes in a rotary kiln ?

4 / 50

Soil pollution is caused by:_________?

5 / 50

Chlorine Cl when attached to benzene has________?

6 / 50

Which one does not exhibit aldol condensation___________________?

7 / 50

When chlorine is passed through hot solution of caustic soda the reaction is said as___________________?

8 / 50

Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?

9 / 50

For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants__________________?

10 / 50

P2O5 is a hygroscopic powder which sublimes at______________?

11 / 50

Enthalpy of combustion for food fuel and other compounds can be measured accurately by________________?

12 / 50

Secondary cell is_____________________?

13 / 50

Fluted filter paper is used to__________________?

14 / 50

In O2 each oxygen atom is hybridized_________________?

15 / 50

Which is not a sublime material_______________?

16 / 50

Alkenes are produced from dehalogenation of________________?

17 / 50

Tetrahydroborate ion is the source of_______________?

18 / 50

Chromatography is used to separate _________ ?

19 / 50

What is the density ofargon gas at a temperature of 30?C and a pressure of 1.05 atm?

20 / 50

Which of the following is pseudo solid_____________________?

21 / 50

Which of the p-block elements are not representative elements ?

22 / 50

Which of the following statements is false about transition metals?

23 / 50

In base catalyzed reaction of carbonyl compound the catalyst___________________?

24 / 50

Alkanes are also known as________________?

25 / 50

When an atom absorbs energy the lines in the spectrum will appear which are_________________?

26 / 50

The element that act as anode always have ______________ position in electrochemical cell?

27 / 50

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

28 / 50

Greater shielding effect corresponds to ionization energy value___________________?

29 / 50

Rate of reaction when concentration of reactants are taken as unity is called_________________?

30 / 50

Which compound is also known by the name of carbolic acid ?

31 / 50

The oxidation number of central metal atom in [Ni(CO)4] is_________________?

32 / 50

In case of gases Kc is replaced by_______________?

33 / 50

Which state of matter has the lowest density ?

34 / 50

The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is___________?

35 / 50

Hydrocarbon is formed when Grignard reagent is treated with___________?

36 / 50

Phenol was isolated by Runge from________________?

37 / 50

Clemmensens reduction infolves the reduction of___________________?

38 / 50

Boiling point elevations can be measured by__________________?

39 / 50

Addition of CH3COOH and CH3COONa gives in water_______________?

40 / 50

Which is methyl cyanide_________________?

41 / 50

Electrode potential of Zn is__________________?

42 / 50

Methane is used in power generation in chemical industries being a__________________?

43 / 50

Orthoboric acid is 2.6% soluble in water at 40?C and ___________at 107?C.

44 / 50

The mass of 3.2 moles of ammonia (NH3) gas?

45 / 50

Atom cannot be divided into simple unitstheorized by________________?

46 / 50

Which of the following can form a chealate______________________?

47 / 50

Positive rays are produced__________________?

48 / 50

Which of the following solution has the highest boiling point ?

49 / 50

Upto ___________________ C atoms alkanes are gases?

50 / 50

When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is______________?

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