Best viewed in Google Chrome

Advertisement

Popular Posts

Services

Alkali and Alkaline Earth Metals: India Study Solution Test Series, Chemistry objective questions for JEE, NEET, other admission tests

- No comments

s-Block Elements (Alkali Metals, Alkaline Earth Metals)

India Study Solution Test Series (Chemistry - Confidence Booster)
NEET, JEE IIT, AIIMS, NTSE | Engineering, BDS, MBBS Admission Test
Hi Guys,
Welcome back to your own site India Study Solution
India Study Solution - representative image
As you are aware that in each set of India Study Solution test series we bring for you another 10 most important questions with their hints & solutions. This post is from our Chemistry Solutions exclusively on Group-I and Group-II elements of Periodic Table.
In each set you will find a combination of typically important some basic with some advanced level questions very helpful for doing online preparation especially for NEET, JEE (IIT) and all other MBBS Admission Tests, Engineering Entrance Exams, NTSE etc.
Many coaching institutes in India are charging thousands of rupees whereas you can get the same benefit in this site sitting at home just free of cost. How’s that !!
Please scroll down to find NEET and JEE syllabus of s-Block elements.
Chemistry Practice Questions: s-Block Elements 
(Alkali and Alkaline Earth Metals)
(Group 1 Elements: Alkali Metals; Group 2 Elements: Alkaline Earth Metals)
India Study Solution MCQ Test Series – Set 3 (Q. No 21-30)


Question 21: A substance x is a compound of s-block element, substance X gives a violet colour in flame test, X is:
a. LiCl
b. MgCl
c. BaCl2
d. KCl

Question 22: During electrolysis of fused NaH, product obtained at anode
a. H2
b. O2
c. Na
d. H2O2

Question 23: Potassium carbonate is not prepared by:
a. Solvay process
b. Le-Blanc process
c. Prechts process
d. None of these

Question 24: Caustic soda is:
a. efflorescent
b. deliquescent
c. hygroscopic
d. oxidant

Question 25: Beryllium chloride can easily be hydrolysed, this is because
a. BeCl2 is covalent in nature
b. BeCl2 is ionic in nature
c. It has higher value of hydration energy due to smaller size of Be+2
d. It has higher value of hydration and lattice energy

Question 26: Sodium and potassium react with water much more vigorously than lithium because:
a. sodium and potassium have high values of hydration energy as compared to that of lithium
b. sodium and potassium have higher melting point than that of lithium
c. sodium and potassium have lower melting point than that of lithium
d. sodium and potassium have lower hydration energy than that of lithium

Question 27: Alkaline earth metals show:
a. divalency
b. monovalency
c. variable valency
d. zero valency

Question 28: Which one of the following compounds is a peroxide?
a. NO2
b. KO2
c. BaO2
d. MnO2

Question 29: Plaster of Paris hardens by:
a. giving off CO2
b. utilising water
c. changing into CaCO3
d. giving out water

Question 30: A is a s-block element and on reaction with nitrogen, it gives an ionic compound B. compound C and D is formed when B reacts with water. Solution of C becomes milky when CO2 is passed through it then in the above sequence of reaction, A and D are respectively
a. Ca, Ca(OH)2
b. Li, Ca(OH)2
c. Ca3N2, NH3
d. Ca, NH3

s-Block Elements / Alkali and Alkaline Earth Metals (NEET / JEE syllabus):
General characteristics, electronic configuration, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the variation of properties (such as ionization enthalpy, atomic and ionic radii), trends in chemical reactivity with oxygen, water, hydrogen and halogens; uses of the compounds of Group I Elements (Alkali Metals) and Group II Elements (Alkaline Earth Metals). Preparation and Properties of Some important Compounds: sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogen carbonate, biological importance of sodium and potassium. Anomalous behaviour of beryllium. Industrial use lime and limestone, biological importance of Mg and Ca.
>>>>> <<<<<
India Study Solution - Hints and Solutions Chemistry MCQ Test Series
Alkali and Alkaline Earth Metals (s-Block Elements)
(Group 1 Elements: Alkali Metals; Group 2 Elements: Alkaline Earth Metals)
Solutions of Chemistry Test Series (MCQ) – Set 3 (Q. No.21–30)
Answer 21: d (Hint: In the flame test of KCl gives violet colour).
Answer 22: a. Answer 23: a. Answer 24: b. Answer 25: c.
Answer 26: c (Hint: When sodium and potassium react with water, the heat evolved causes them to melt, giving a larger area of contact with water, lithium on the other hand, does not melt under these condition and thus reacts more slowly. Melting points of Li, Na, and K are 180, 98 and 64 (0C) respectively).
Answer 27: a. Answer 28: c. Answer 29: b. Answer 30: d.
 s-Block Elements (Alkali and Alkaline Earth Metals)
 More questions to follow

<< Previous (Q.No. 11-20)           (Q.No. 31-40) Next >>

Electrostatics : India Study Solution Test Series, solved Physics objective questions for JEE, NEET, other admission tests

- No comments

Physics - Electrostatics

India Study Solution Physics Test Series (Confidence Booster)
NEET, JEE, IIT, AIIMS, NTSE | Engineering, BDS, MBBS Admission Test
Hi Guys,
Welcome back to your own site India Study Solution
From today we are starting a new chapter Electrostatics from Physics which will have 30 sets of test series, each set containing 10 most important MCQ questions with their hints & solutions (given at the end).
(Please scroll down to find Electrostatics syllabus for NEET and JEE).
This is a very important chapter and so Friends, we would ask you to please bookmark this site or if you have not subscribed us yet then please subscribe before you forget (it is free) so that you get information whenever we publish more questions on this and other chapter / subject.
Hope it would help you to learn and enhance your confidence while preparing for NEET, JEE (IIT), AIIMS, COMEDK, NEST or any other Medical and Engineering Entrance Exams.
So, friends without wasting time let us start -



Electrostatics  
India Study Solution Test Series – Set 1 (Q. No 1-10)
Question 1: A total charge Q is broken in two parts Q1 and Q2 and they are placed at a distance R from each other. The maximum force of repulsion between them will occur, when
Electrostatics : India Study Solution Test Series, solved Physics objective questions

Question 2: When the separation between two charges is increased, the electric potential energy of the charges
a. increases
b. decreases
c. remains the same
d. may increase or decrease

Question 3: Three charges +4q, -q and +4q are kept on a straight line at position (0, 0, 0), (a, 0, 0) and (2a, 0, 0) respectively. Considering that they are free to move along the x-axis only
a. all the charges are in stable equilibrium
b. all the charges are in unstable equilibrium
c. only the middle charge is in stable equilibrium
d. only the middle charge is in unstable equilibrium

Question 4: A soap bubble is given a negative charge, then its radius:
a. decreases
b. increases
c. remains unchanged
d. nothing can predicted as information is insufficient

Question 5: When a soap bubble is charged it
a. Bursts
b. Does not undergo any charge
c. Expands
d. Contracts

Question 6: Due to the motion of a charge, its magnitude
a. changes
b. does not change
c. increase (or) decreases depends on its speed
d. cannot be predicted

Question 7: Charges +q and –q are placed at points A and B respectively which are a distance 2 L apart, C is the midpoint between A and B. The work done in moving a charge +Q along the semicircle CRD is:
Electrostatics : Solved Physics objective questions for JEE, NEET

Question 8: Static electricity is produced by
a. Friction only
b. Induction only
c. Friction and induction both
d. Chemical reaction only

Question 9: A simple pendulum of period T has a metal bob which is negatively charged. If it is allowed to oscillate above a positively charged metal plate, its period will be
a. Remains equal to T
b. Less than T
c. Greater than T
d. Infinite

Question 10: If a positive charge is shifted from a low-potential region to a high –potential region, the electric potential energy
a. increases
b. decreases
c. remains the same
d. may increase or decrease

Electrostatics (Syllabus for NEET and JEE): Introduction, Electric Charges and their properties, Frictional Electricity, Charges and their Conservation, Unit of Charge, Conductors and Insulators, Presence of free Charges and bound Charges inside a Conductor, Charging by Induction, Coulomb’s Law, Dielectric Constant,  Forces between Multiple Charges, Electric Field, Electric Field lines, Electric Flux, Electric Dipole, Dipole in a Uniform External Field, Torque on a Dipole in a uniform electric field,  Continuous Charges distribution, Gauss’s Law and its applications, Electrostatic Potential, Potential due to Point Charge / Electric dipole / System of charges, Equipotential Surfaces, Potential Energy of a System of Charges/ External Field,       
India Study Solution Test Series
electrostatics 
Hints and Solutions of Physics Electrostatics MCQ Test Series – Set 1 (Q. No.1–10)
Answer 1: d. Answer 2: d.
Answer 3: b.





Answer 4: b (Hint: On the surface of bubble same charge will distribute, so there is repulsion of charges so radius of bubble increases).
Answer 5: c. Answer 6: b.
Answer 7: d (4).
(Hint: Work done is equal to change in potential energy. In 1st case, when charge +Q is situated at C. Electric potential energy of system.)
https://www.indiastudysolution.com - image depicting solution of Electrostatics question

Answer 8: c. Answer 9: b. Answer 10: a.
 Electrostatics: More questions to follow

                              (Q.No. 11-20)  Next >>

Organic chemistry objective questions – Basic Principles, Classification, Nomenclature, Purification and Characterisation of Organic Compounds

- No comments
Organic Chemistry – Basic Principles, Classification, IUPAC Nomenclature, Purifications, TECHNIQUES and Characterisation of Organic Compounds
India Study Solution Test Series (Confidence Booster)
NEET, JEE, IIT, AIIMS, NTSE | Engineering, BDS, MBBS Admission Test
Hi Guys,
Welcome back to your own site India Study Solution
https://www.indiastudysolution.com/2020/05/organic-chemistry-objective-questions-s2.html
As you are aware that in each set of India Study Solution test series we bring for you 10 new most important questions with their hints & solutions. This post is from our Chemistry Solutions on chapter “Organic Chemistry – Basic Principles, Classification, Nomenclature, Purification and Characterisation of Organic Compounds”.
In each set you will find a combination of typically important some basic with some advanced level questions very helpful for doing online preparation of all MBBS Admission Tests, Engineering Entrance Exams, NEET, JEE and NTSE etc.
 (Please scroll down to find NEET and JEE syllabus for this chapter).
Friends, if you are a medical or engineering aspirant, preparing for any of the above entrance exams and have not subscribed us yet then please subscribe this site (button is given) before you forget (it is free), like and follow us in Facebook, Twitter so that you get information through email whenever we publish more questions on any chapter in Physics / Biology / Chemistry / Mathematics.
Organic Chemistry
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
India Study Solution Test Series – Set 2 (Q. No 11-20)


Question 11: The IUPAC name of the compound CH3CH=CHC≡CH is
a. Pent-4-yn-2-ene
b. Pent-3-en-1-yne
c. Pent-2-en-4-yne
d. Pent-1-yn-3-ene

Question 12: Which of the following sodium compound / compounds are formed when an organic compound containing both nitrogen and sulphur is fused with sodium?
a. Cyanide and sulphide
b. Thiocyanate
c. Sulphite and cyanide
d. Nitrate and sulphide

Question 13: The number of structural isomers in C4H10O will be
a. 7
b. 8
c. 5
d. 6

Question 14: How many structural isomers are possible for C2H4Br2
a. 1
b. 2
c. 3
d. 4

Question 15: Nitrogen detection in an organic compound is carried out by Lassaigne’s test. The blue colour formed corresponds to which of the following formulae?
a. Fe3[Fe(CN)6]3
b. Fe3[Fe(CN)6]2
c.Fe4[Fe(CN)6]3
d. Fe4[Fe(CN)6]2

Question 16: In a resonance hybrid, the bond length:
a. is smaller than in canonical structure
b. is greater than in canonical structure
c. is the same as in canonical structure
d. none of the above

Question 17: The correct order of reactivity towards the electrophilic substitution of the compounds aniline (I), benzene (II) and nitrobenzene (III) is
a. III > II > I
b. II > III > I
c. I < II > III
d. I > II > III

Question 18: Carbon and hydrogen are estimated in organic compounds by:
a. Kjeldahl’s method
b. Duma’s method
c. Liebig’s method
d. Carius method

Question 19: Which method is used to separate two and more organic solids with different solubilities in the same solvent?
a. Crystallisation
b. Fractional crystallisation
c. Sublimation
d. Chromatography

Question 20: Which of the following is correct?
a. Cycloheptane is an aromatic compound
b. Diastase is an enzyme
c. Acetophenone is an ether
d. All of these

Organic Compounds: Basic Principles, Classification & Nomenclature, Purification and Characterisation (Syllabus for NEET and JEE): Introduction to Organic Chemistry, Structural representation of organic compounds, Methods of purification qualitative and quantitative analysis of organic compounds, Classifications based on functional groups, Nomenclature (Trivial and IUPAC), Homologous series and Isomerism, Fundamental concepts in organic reaction mechanism, Tetravalency of carbon, Shapes of simple molecules, Electronic displacements in a covalent bond: Inductive effect, Electromeric effect (E-effect), Resonance and Hyperconjugation, Homolytic and heterolytic fission of a covalent bond: free radicals, carbocations, carbanions; electrophiles and nucleophiles, Types of organic reactions.
India Study Solution - Hints and Solutions Chemistry MCQ Test Series
Organic Chemistry 
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
Hints and Solutions of Organic Chemistry Test Series (MCQ) – Set 2 (Q. No.11–20)
Answer 11: b. Answer 12: b. Answer 13: a.
Answer 14: b (C2H4Br2 => D.U = 0)
Answer 15: c. Answer 16: a. Answer 17: d. Answer 18: c. Answer 19: b. (Fractional crystallisation). Answer 20: b.

Organic Chemistry: Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds
 More questions to follow

<< Previous (Q.No. 1-10)                              (Q.No. 21-30) Next >>