Chemistry Quiz 17
1 / 50
Rate of reaction when concentration of reactants are taken as unity is called_________________?
2 / 50
Chromatography is used to separate _________ ?
3 / 50
Chlorine Cl when attached to benzene has________?
4 / 50
Which is not a sublime material_______________?
5 / 50
Phenol was isolated by Runge from________________?
6 / 50
When chlorine is passed through hot solution of caustic soda the reaction is said as___________________?
7 / 50
Upto ___________________ C atoms alkanes are gases?
8 / 50
Boiling point elevations can be measured by__________________?
9 / 50
The mass of 3.2 moles of ammonia (NH3) gas?
10 / 50
Atom cannot be divided into simple unitstheorized by________________?
11 / 50
Soil pollution is caused by:_________?
12 / 50
Which of the following is pseudo solid_____________________?
13 / 50
The important function of burning zone in the rotary kilm is __________________?
14 / 50
The oxidation number of central metal atom in [Ni(CO)4] is_________________?
15 / 50
Which of the following can form a chealate______________________?
16 / 50
Secondary cell is_____________________?
17 / 50
Alkanes are also known as________________?
18 / 50
Which state of matter has the lowest density ?
19 / 50
In base catalyzed reaction of carbonyl compound the catalyst___________________?
20 / 50
The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is___________?
21 / 50
Enthalpy of combustion for food fuel and other compounds can be measured accurately by________________?
22 / 50
When an atom absorbs energy the lines in the spectrum will appear which are_________________?
23 / 50
Which is methyl cyanide_________________?
24 / 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 ?
25 / 50
P2O5 is a hygroscopic powder which sublimes at______________?
26 / 50
Fluted filter paper is used to__________________?
27 / 50
Alkenes are produced from dehalogenation of________________?
28 / 50
Which of the following statements is false about transition metals?
29 / 50
Orthoboric acid is 2.6% soluble in water at 40?C and ___________at 107?C.
30 / 50
In O2 each oxygen atom is hybridized_________________?
31 / 50
Addition of CH3COOH and CH3COONa gives in water_______________?
32 / 50
Which one does not exhibit aldol condensation___________________?
33 / 50
Positive rays are produced__________________?
34 / 50
Which of the p-block elements are not representative elements ?
35 / 50
Tetrahydroborate ion is the source of_______________?
36 / 50
What is the density ofargon gas at a temperature of 30?C and a pressure of 1.05 atm?
37 / 50
The element that act as anode always have ______________ position in electrochemical cell?
38 / 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______________?
39 / 50
Which of the following solution has the highest boiling point ?
40 / 50
Methane is used in power generation in chemical industries being a__________________?
41 / 50
Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?
42 / 50
For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants__________________?
43 / 50
Electrode potential of Zn is__________________?
44 / 50
Which compound is also known by the name of carbolic acid ?
45 / 50
How many zones through which the charge passes in a rotary kiln ?
46 / 50
In case of gases Kc is replaced by_______________?
47 / 50
Greater shielding effect corresponds to ionization energy value___________________?
48 / 50
Hydrocarbon is formed when Grignard reagent is treated with___________?
49 / 50
The gas used in manufacturing of urea fertilizer__________________?
50 / 50
Clemmensens reduction infolves the reduction of___________________?
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