IIT-JEE 1994
JEE Advanced / 15 questions
2026Mon, Apr 11, 1994 9:00 AM15 PYQs
1Basics Of Organic Chemistry
The IUPAC name of succinic acid is _______.
FILL-BLANKS+1 / -01994
2Chemical Bonding And Molecular Structure
Using the VSEPR theory, identify the type of hybridization and draw the structure of OF2. What are the oxidation states of O and F?
SUBJECTIVE+3 / -01994
3Chemical Bonding And Molecular Structure
The two types of bond present in B2H6 are covalent and _______.
FILL-BLANKS+1 / -01994
4Electrochemistry
The standard reduction potential of the Ag+/Ag electrode at 298 K is 0.799V. Given that for AgI, Ksp = 8.7 \(\times\) 10-17, evaluate the potential of the Ag+/Ag electrode in a saturated solution of AgI. Also calculate the standard reductio...
SUBJECTIVE+3 / -01994
5Electrochemistry
The Edison storage cells is represented as
Fe(s) | FeO(s) | KOH (aq) | Ni2O3(s) | Ni(s)
The half-cell reactions are:
Ni2O3 + H2O (l) + 2e- \(\leftrightharpoons\) 2NiO(s) + 2OH-; Eo = +0.40V
FeO(s) + H2O(l) + 2e- \(\leftrightharpoons\) Fe(s)...
Fe(s) | FeO(s) | KOH (aq) | Ni2O3(s) | Ni(s)
The half-cell reactions are:
Ni2O3 + H2O (l) + 2e- \(\leftrightharpoons\) 2NiO(s) + 2OH-; Eo = +0.40V
FeO(s) + H2O(l) + 2e- \(\leftrightharpoons\) Fe(s)...
SUBJECTIVE+4 / -01994
6Gaseous State
An LPG (liquefied petroleum gas) cylinder weighs 14.8 kg when empty. When full, it weighs 29.0 kg and shows a pressure of 2.5 atm. In the course of use at 27o C, the weight of the full cylinder reduces to 23.2 kg. Find out the volume of the...
SUBJECTIVE+3 / -01994
7Gaseous State
A 4 : 1 molar mixture of He and CH4 is contained in a vessel at 20 bar pressure. Due to a hole in the vessel the gas mixture leaks out. What is the composition of the mixture effusing out initially?
SUBJECTIVE+2 / -01994
8S Block Elements
Statement (S) The alkali metals can form ionic hydrides which contain the hydride ion H-.
Explanation (E) The alkali metals have low electronegativity; their hydrides conduct electricity when fused and liberate hydrogen at the anode.
Explanation (E) The alkali metals have low electronegativity; their hydrides conduct electricity when fused and liberate hydrogen at the anode.
MCQ+2 / -0.51994
9S Block Elements
Complete and balance the following reactions:
Ca5(PO4)3F + H2SO4 + H2O \(\buildrel {Heat} \over \longrightarrow\) ........ + 5CaSO4.2H2O + ........
Ca5(PO4)3F + H2SO4 + H2O \(\buildrel {Heat} \over \longrightarrow\) ........ + 5CaSO4.2H2O + ........
SUBJECTIVE+1 / -01994
10Salt Analysis
A is binary compound of a univalent metal. 1.422 g of A
reacts completely with 0.321 g of sulphur in an evacuated
and sealed tube to give 1.743 g of a white crystalline solid
B, that forms a hydrated double salt, C with Al2
(SO4)3
.
Identif...
reacts completely with 0.321 g of sulphur in an evacuated
and sealed tube to give 1.743 g of a white crystalline solid
B, that forms a hydrated double salt, C with Al2
(SO4)3
.
Identif...
SUBJECTIVE+4 / -01994
11Some Basic Concepts Of Chemistry
8.0575 \(\times\) 10-2 kg of Glauber's salt is dissolved in water to obtain 1 dm3 of a solution of density 1077.2 kg.m-3. Calculate the molarity, molality and mole fraction Na2SO4 in the solution.
SUBJECTIVE+3 / -01994
12Some Basic Concepts Of Chemistry
The composition of a sample of Wustite is Fe0.93O1.00 what percentage of the iron is present in the form of Fe(III)?
SUBJECTIVE+2 / -01994
13Some Basic Concepts Of Chemistry
The compound YBa2Cu3O7, which shows superconductivity, has copper in oxidation state ______ assume that the rare earth element yttrium is in its usual +3 oxidation state.
FILL-BLANKS+1 / -01994
14Structure Of Atom
Find out the number of waves made by a Bohr electron in once complete revolution in its 3rd orbit?
INTEGER+3 / -01994
15Structure Of Atom
The outermost electronic configuration of Cr is _______.
FILL-BLANKS+1 / -01994