ExamSIDE
Questions
PREVIOUS NEXT
1
JEE Main 2019 (Online) 12th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
The correct statement (s) among I to III with respect to potassium ions that are abundant within the cell fluid is /are
I. They activate many enzymes
II. They participate in the oxidation of glucose to produce ATP
III. Along with sodium ions they are responsible for the transmission of nerve signals
A
III only
B
I and II only
C
I and III only
D
I, II and III only
2
JEE Main 2019 (Online) 12th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
A metal on combustion in excess air forms X. X upon hydrolysis with water yields H2O2 and O2 along with another product. The metal is -
A
Rb
B
Mg
C
Na
D
Li
3
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Match the following items in column I with the corresponding items in column II.

Item I Item II
(i) Na2CO3.10H2O (A) Portland cement ingredient
(ii) Mg(HCO3)2 (B) Castner-Kellner process
(iii) NaOH
 (C) Solvay process
(iv) Ca3Al2O6 (D) Temporary hardness
A
(i)$$ \to $$(D); (ii)$$ \to $$(A); (iii)$$ \to $$(B); (iv)$$ \to $$(C)
B
(i)$$ \to $$(B); (ii)$$ \to $$(C); (iii)$$ \to $$(A); (iv)$$ \to $$(D)
C
(i)$$ \to $$(C); (ii)$$ \to $$(B); (iii)$$ \to $$(D); (iv)$$ \to $$(A)
D
(i)$$ \to $$(C); (ii)$$ \to $$(D); (iii)$$ \to $$(B); (iv)$$ \to $$(A)
4
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
The reaction that does NOT define calcination is :
A
2Cu2S + 3O2 $$\buildrel \Delta \over \longrightarrow $$ 2Cu2O + 2SO2
B
CaCO3 . MgCO3 $$\buildrel \Delta \over \longrightarrow $$ CaO + MgO + 2CO2
C
ZnCO3 $$\buildrel \Delta \over \longrightarrow $$ ZnO + CO2
D
Fe2O3 . XH2O $$\buildrel \Delta \over \longrightarrow $$ Fe2O3 + XH2O
PREVIOUS NEXT
JEE Main Subjects
Physics
Mechanics
Units & Measurements Vector Algebra Motion Circular Motion Laws of Motion Work Power & Energy Center of Mass and Collision Rotational Motion Properties of Matter Heat and Thermodynamics Simple Harmonic Motion Waves Gravitation
Electricity
Electrostatics Current Electricity Capacitor Magnetics Alternating Current and Electromagnetic Induction
Optics
Ray & Wave Optics
Modern Physics
Atoms and Nuclei Dual Nature of Radiation Semiconductor Communication Systems
Chemistry
Physical Chemistry
Some Basic Concepts of Chemistry Structure of Atom Redox Reactions Gaseous State Equilibrium Solutions Thermodynamics Electrochemistry Chemical Kinetics and Nuclear Chemistry Solid State Surface Chemistry
Inorganic Chemistry
Periodic Table & Periodicity Chemical Bonding & Molecular Structure Isolation of Elements Hydrogen s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry
Organic Chemistry
Basics of Organic Chemistry Hydrocarbons Haloalkanes and Haloarenes Alcohols, Phenols and Ethers Aldehydes, Ketones and Carboxylic Acids Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry
Mathematics
Algebra
Sets and Relations Quadratic Equation and Inequalities Sequences and Series Mathematical Induction and Binomial Theorem Matrices and Determinants Permutations and Combinations Probability Vector Algebra 3D Geometry Complex Numbers Statistics Mathematical Reasoning
Trigonometry
Trigonometric Functions & Equations Inverse Trigonometric Functions Properties of Triangle
Coordinate Geometry
Straight Lines and Pair of Straight Lines Circle Conic Sections
Calculus
Functions Limits, Continuity and Differentiability Differentiation Application of Derivatives Indefinite Integrals Definite Integrals and Applications of Integrals Differential Equations
EXAM MAP
Joint Entrance Examination
JEE MainJEE AdvancedWB JEE
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Medical
NEET