Chemistry Quiz 19
1 / 50
Decrease in oxidation number is called__________________?
2 / 50
When the value of Kc is very small then_______________________?
3 / 50
Which is fused cyclic aromatic compound _____________________?
4 / 50
The PH of pure water at 25?C, kw=1?10-4____________?
5 / 50
Which one of the following is not an alkali metal ?
6 / 50
Enzymes from the same organism which catalyze same reaction but are chemically and physically distinct from each other are called______________?
7 / 50
Acetal on acid hydrolysis generates__________________?
8 / 50
A substance having very high vapour pressure at its melting point on heating will show_______________?
9 / 50
Which one of following is not a property of pure quartz ?
10 / 50
Isomorphic substances have _______________?
11 / 50
When a graph is plotted between 1/T on X-axis and log k on y-axis a straight line is obtained with a negative slope which has two end in__________________?
12 / 50
Crystallites are present in_________________?
13 / 50
For determining the order of reaction we use__________________?
14 / 50
The common name of propane 1 3-dioic is_________________?
15 / 50
58.5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be___________________?
16 / 50
Which group contains elements that exist as monoatomic molecule?
17 / 50
The highest temperature at which a substance can exist as a liquid is called its______________?
18 / 50
Carboxylic acid on reduction with HI / phosphorous yields_________________?
19 / 50
The density of a gas is 1.964 g dm-3 at 273 K and 76 cm Hg. The gas is _________?
20 / 50
The colour of chlorine gas is_______________?
21 / 50
The sequence of zones in the rotary kiln are as____________________?
22 / 50
The main pollutant of leather tanneries in the waste water is____________________?
23 / 50
Which set of quantum numbers is not allowed?
24 / 50
Energy of activation for backward reaction is less than forward reaction for ___________ reactio?
25 / 50
Alpha (?) particles are helium (He) nucleus with a charge of __________ ?
26 / 50
In partially miscible liquids the two layers are___________________?
27 / 50
Essential amino acids are___________________?
28 / 50
Animal and vegetable fats are___________________?
29 / 50
Molozonide is unstable and changes into ozonide on_________________?
30 / 50
Which one of the following compounds usually smells like garlic ?
31 / 50
The compound (CH3)3COH according to IUPAC is known as ___________?
32 / 50
Which solids are called true solids _______________?
33 / 50
What is the mass of one mole of Iodine?
34 / 50
ppm means________________?
35 / 50
Acid present in acid rain may be__________________?
36 / 50
Which of the following reagents will react with both aldehydes and ketones ?
37 / 50
Which one is not the absolute term of the element _________________ ?
38 / 50
Which one is not state function ________________?
39 / 50
Cannizzaros reaction is not given by__________________?
40 / 50
A substance is analyzed and found to have an emperical formula of CH2 and a molar mass of 56g/mole. What is the molecular formula of the compound?
41 / 50
Which one of the following raw material is not present in the cement ?
42 / 50
When SO2 solution is passed over which of the following it turns green?
43 / 50
Periodic table provides a basic framework to study elements with respect to their__________________?
44 / 50
Sum of exponents of molar concentration is called___________________?
45 / 50
Residence time of methane in the atmosphere is___________________?
46 / 50
Which is not related pair of term used in analytical techniques________________?
47 / 50
Oxidation of primary alcohol gives________________?
48 / 50
BeCl2 has the hybrid orbitaks of type_______?
49 / 50
The anhydride of HCIO4 is_________________?
50 / 50
Which among the following is not a property of Ionic bond _________?
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