Match The FollowingMatch the following:
| A. Disaccharide | (i) Lucas reagent |
| B. Carbylamine | (ii) Condensation polymer |
| C. Dacron | (iii) Obnoxious smell |
| D. Dacron | (iv) Sucrose |
| E. Anhydrous ZnCl2 + conc. HCl | (v) Hexaamminecobalt(III)ion |
Fill In the BlanksFill in the blanks by choosing the appropriate word/words from those given in the
brackets:
(increases, decreases, positive, efficient, 68, non-efficient, no α-hydrogen, α-hydrogen,
negative, Rosenmund’s, greater, Cannizzaro, 74, common-ion effect, lesser, buffer
action, diamagnetic, paramagnetic)
(i) The more__________ the standard reduction potential of a metal, the ________ is
its ability to displace hydrogen from acids.
(ii) Both ccp and hcp are ____________ packings and occupy about _________% of
the available space.
(iii) Solubility of silver chloride _____________ in the presence of sodium chloride
because of _____________.
(iv) Benzaldehyde undergoes ___________ reaction on treatment with concentrated
sodium hydroxide because it has ___________ atom.
(v) The transition metals show ______________ character because of the presence of
unpaired electrons and Cu+ is _____________because its electronic configuration
is [Ar]3d10.
Multiple Choice QuestionsComplete the following statements by selecting the correct alternative from the choices given:
The molal freezing point constant of water is 1·86 K kg mol-1 . Therefore, the freezing point of 0·1M NaCl solution in water is expected to be:
-1·86oC
-0·372oC
-0·186oC
-0·186oC
Complete the following statements by selecting the correct alternative from the
choices given:
For a first order reaction the rate constant for decomposition of N2O5 is 6×10-4sec-1.
The half-life period for the decomposition in seconds is:
11·55
115·5
1155
1155
Complete the following statements by selecting the correct alternative from the
choices given:
When acetaldehyde is treated with Grignard reagent, followed by hydrolysis the
product formed is:
Primary alcohol
Secondary alcohol
Carboxylic acid
Carboxylic acid
Complete the following statements by selecting the correct alternative from the choices given:
The geometry of XeF6 molecule and the hybridization of Xe atom in the molecule is:
Distorted octahedral and sp3d3
Square planar and sp3d2
Pyramidal and sp3
Pyramidal and sp3
Complete the following statements by selecting the correct alternative from the
choices given:
In the complexes [Fe(CN)6]3- and [Pt(en) (H2O)2(NO2)(Cl)]2+ the respective
oxidation numbers of central metal atoms are :
+ 3 and +4
+6 and +4
+6 and +3
+6 and +3
Short Answer TypeAnswer the following questions:
What is the effect of temperature on the ionic product of water? How will it change the pH value of a neutral solution?
The Ionic product increases with increase in temperature because the dissociation of water increases with the increase of temperature. With the increase in the concentration of H3O+ ions, pH of the neutral solution will decrease.
Answer the following questions:
How many hours does it take to reduce 3 moles of Fe3+to Fe2+ with 2·0 A current intensity?
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