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18701.

Statement 1: `R-CH=CH_(2)overset(C Cl_(3)Br)underset("Peroxide")tooverset(Br)overset(|)(RCH)-CH_(2)C Cl_(3)` Statement-2: The addition obey free radical addition on alkenes in presence of peroxide.A. If both the statement are TRUE and Statement -2 is the correct explanation of Statement-1:B. If both the statement are TRUE but Statement-2 is not the correct explanation of Statement-1C. If statement-1 is TRUE and Statement-2 is FALSED. If statement -1 is FALSE and Statement-2 is TRUE

Answer» Explanation is correct reason for statement.
18702.

Statement-1: Reaction of `t`-butyl chloride on Wurtz reaction gives alkene. Statement-2: `t`-butyl chloride on Wurtz reaction gives alkene.A. If both the statement are TRUE and Statement -2 is the correct explanation of Statement-1:B. If both the statement are TRUE but Statement-2 is not the correct explanation of Statement-1C. If statement-1 is TRUE and Statement-2 is FALSED. If statement -1 is FALSE and Statement-2 is TRUE

Answer» `(CH_(3))_(3)CBr overset(Na)to(CH_(3))_(2)C=Cl_(2)`
18703.

Statement-1: `Sb_(2)S_(3)` is not soluble in yellow ammonium sulphide. Statement-2: the common ion effect due to `S^(2-)` ions reduces the solubility of `SbS_(3)`.A. If both the statement are TRUE and Statement -2 is the correct explanation of Statement-1:B. If both the statement are TRUE but Statement-2 is not the correct explanation of Statement-1C. If statement-1 is TRUE and Statement-2 is FALSED. If statement -1 is FALSE and Statement-2 is TRUE

Answer» `t`-alkyl halides gives eleimination.
18704.

Which of the following will not produce an ether by Willanson synthesis ?A. B. C. D.

Answer» Correct Answer - A
Bromobenzene (an alkyl haldie) is less reactive and as such will not sod. Methoxide to give and ether.
18705.

Which of the following will not produce an ether by Willanson synthesis ?A. `CH_3Br+CH_3-overset(CH_3)overset(|)underset(CH_(3))underset(|)C-ONa`B. `CH_3ONa+CH_3-overset(CH_3)overset(|)underset(CH_(3))underset(|)C-Br`C. `CH_3Br+CH_3-CH_2-Ona`D. `CH_3CI+CH_3CH_2ONa`

Answer» Correct Answer - B
A `3^(@)` alkyl halide undergoes elimination with alkoxide to give and alkene.
`CH_3ONa+CH_3-overset(CH_3)overset(|)underset(CH_3)underset(|)(C)- Brto`
`CH_3-overset(CH_2)overset(||)underset(CH_3)underset(|)(C)+ NaBr+CH_3OH` As such no ehter is formed during the reaction.
18706.

Internal Energy (E,also denoted by U): Every system having some quantity of matter is associated with a definite amount of energy, called internal energy. `E=E_("Transiational")+E_("Rotational")+E_("Vibrational")+E_("bonding")+`.... `DeltaE=E_("Final")-E_("initial")` `DeltaE=q_v`, heat supplied to a gas at constant volume, since all the heat supplied goes to increase the internal energy to the gas. It is an extensive property & a state function.It is exclusively a function of temperature. If `DeltaT=0 , DeltaE=0` as well. The internal energy of a certain substance is given by the following equation : U=3 PV+84 where U is given in kJ/kg, P is in kPa, and V is in `m^3//kg` A system composed of 3 kg of this substance expands from an initial pressure of 400 kPa and a volume of A `0.2 m^3` to a final pressure 100 kPa in a process in which pressure and volume are related by `PV^2`=constant. Explain the difference in work transfer in question (6.25) and (6.26).

Answer» The work in (6.25) is not equal to `int PdV` since the process is not quasi-static
18707.

Internal Energy (E,also denoted by U): Every system having some quantity of matter is associated with a definite amount of energy, called internal energy. `E=E_("Transiational")+E_("Rotational")+E_("Vibrational")+E_("bonding")+`.... `DeltaE=E_("Final")-E_("initial")` `DeltaE=q_v`, heat supplied to a gas at constant volume, since all the heat supplied goes to increase the internal energy to the gas. It is an extensive property & a state function.It is exclusively a function of temperature. If `DeltaT=0 , DeltaE=0` as well. The internal energy of a certain substance is given by the following equation : U=3 PV+84 where U is given in kJ/kg, P is in kPa, and V is in `m^3//kg` A system composed of 3 kg of this substance expands from an initial pressure of 400 kPa and a volume of A `0.2 m^3` to a final pressure 100 kPa in a process in which pressure and volume are related by `PV^2`=constant. In another process the same system expands according to the same pressure-volume relationship as in above question, but from the same initial state of the final state as in above question, but the heat transfer in this case is +30 kJ.Then the work transfer for this process is :A. `-80 kJ`B. `-60 kJ`C. `-90 kJ`D. `-150 kJ`

Answer» Correct Answer - D
Since the end states are the same, `DeltaU` would remain the same as in above problem.
`W=DeltaU-q`
`W= -120-30= -150 kJ`
18708.

Internal Energy (E,also denoted by U): Every system having some quantity of matter is associated with a definite amount of energy, called internal energy. `E=E_("Transiational")+E_("Rotational")+E_("Vibrational")+E_("bonding")+`.... `DeltaE=E_("Final")-E_("initial")` `DeltaE=q_v`, heat supplied to a gas at constant volume, since all the heat supplied goes to increase the internal energy to the gas. It is an extensive property & a state function.It is exclusively a function of temperature. If `DeltaT=0 , DeltaE=0` as well. The internal energy of a certain substance is given by the following equation : U=3 PV+84 where U is given in kJ/kg, P is in kPa, and V is in `m^3//kg` A system composed of 3 kg of this substance expands from an initial pressure of 400 kPa and a volume of A `0.2 m^3` to a final pressure 100 kPa in a process in which pressure and volume are related by `PV^2`=constant. If the expansion is quasi-static, then the value of q is :A. 80 kJB. 60 kJC. 40 kJD. 120 kJ

Answer» Correct Answer - A
U=3PV+84
`DeltaU=U_2-U_1=3(P_2V_2-P_1V_1)`
`therefore DeltaU=3(P_2V_2-P_1V_1)`
Now, `P_1V_1^2=P_2V_2^2`
`:. V_2=V_1(P_1/P_2)^(1//2)=0.2(4/1)^(1//2)=0.4`
`DeltaU=300(1xx0.4-4xx0.2)kJ = -120 kJ`
For a quasi-static process
`W=intPdV=(P_2V_2-P_1V_1)/(n-1)`
`=((1xx0.4-4xx0.2)100)/(2-1)=-40 kJ`
`:. DeltaU=q+W`
q=-120+40=-80 kJ
18709.

Bond dissociation energies of hydrogen and nitrogen are 430 kJ and 41.8 kJ respectively and the enthalpy of formation of NH is – 46 kJ. What is the bond energy of N-H bond?

Answer»

3H2 + N2 → 2NH3; AH = -46 kJ 

3 × ½H2 + ½N2 → 2 × ½NH3 

[(3× ½ × 430) + (½ × 941 .8)] – (3N-H) = – 46 

[(3 × 215) + (470.9) + (46)] → [3N-H] 

[645 + 470.9 + 46] = 3N-H 

N-H = 387.3 kJ

18710.

C12 H22 O11 + 12O2 → 12CO2 + 11H2OConsider this equation and answer the following questions. (a) Thermodynamically, which type reaction is this? (b) What is enthalpy of combustion? (c) Give another example.

Answer»

(a) Combustion. 

(b) It is the enthalpy change when one mole of a substance undergoes complete combustion in excess of air or oxygen. 

(c) C6H12O6 + 6O2 → 6CO2 + 6H2O

18711.

Explain the importance of third law of thermodynamics.

Answer»

The importance of third law of thermodynamics lies in the fact that it permits the calculation of absolute values of entropy of pure substances from thermal data alone. For a pure substance, this can be done by summing \(\frac{q_{rev}}{T}\) increments from 0 K to 298 K

Standard entropies (Smθ) can be used to calculate standard entropy changes(ΔrSθ).

18712.

(iii) Which is not a basic flux ?A. `CaCO_(3)`B. `CaO`C. `SiO_(2)`D. None of these

Answer» Correct Answer - C
`SiO_(2)` in an acidic flux.
18713.

(v) An essential constituent of analgam is :A. HgB. AgC. AuD. Al

Answer» Correct Answer - A
Amalgams ore alloys of metal with `Hg`.
18714.

True or false statements : (i) Sodium cyanide is used as a depresent to separate lead sulphide from zinc sulphide.

Answer» Correct Answer - 1
`ZnS` dissolves in `NaCN` to form the soluble complex.
18715.

(vii) Which element is found in human body ?A. FeB. MgC. CaD. Al

Answer» Correct Answer - A::C
`Fe` in harmoglobin (blood)
`Ca` in bones and teeth.
18716.

(viii) Amongest the following groups of oxides, the group containing oxides that cannot be reducing by carbon to give the respective metals is.A. `Cu_(2) O,SnO_(2)`B. `Fe_(2) O_(3),ZnO`C. `CaO,K_(2)O`D. `PbO,Fe_(3) O_(4)`

Answer» Correct Answer - C
`CaO` and `K_(2)O` are oxides of `Ca` and `K`, which are stronger reducing agent than carbon.
18717.

What is the EMF of the cell when the cell reaction attains equilibrium ?

Answer»

your the answer

Zero.

18718.

Find the synonym of words written in capitals.Go off A) spoil B) break C) clear up D) rest

Answer»

Correct option is A) spoil

18719.

Find the synonym of words written in capitals.Temporary A) provisional B) permanent C) constant D) enduring

Answer»

Correct option is A) provisional

18720.

Find the synonym of words written in capitals.Material A) supervision B) substance C) superstition D) surface

Answer»

Correct option is B) substance

18721.

Write the full form of OCPD.

Answer»

The full form of OCPD is Obsessive-compulsive personality disorder.

18722.

Every formula in Calc starts with which symbol?

Answer»

A formula in Calc always starts with an equal to (=) sign.

18723.

Personality is relatively enduring set of_____

Answer»

Personality is relatively enduring set of Traits.

18724.

Personality is relatively enduring set of ______.

Answer»

Personality is relatively enduring set of Traits-emotional, mental and behavioral set of traits.

18725.

Personality is a relatively enduring set of a) Traits b) Rules c) Decisions d) Actions

Answer»

Correct option: a) Traits

18726.

Write any one green job associated with solar and wind energy.

Answer»

Energy auditor, Chief sustainable officer, Wind/solar energy engineer

18727.

My sister is very SERIOUS. A) energetic B) polite C) kind D) intelligent E) light-minded

Answer»

Correct option is E) light-minded

18728.

What are some of the environmental changes caused due to modern methods of agriculture ? (a) Chemical pollution due to fertilizers (b) Improvement in the environment (c) Lower air pollution due to crops (d) Decrease in forest areas

Answer»

Correct answer is (a) Chemical pollution due to fertilizers 

18729.

Write the name of any one software that can be used to create a presentation.

Answer»

MS Office or Power Point Presentation and Open office impress

18730.

Entrepreneurship has a crucial role in the ______ of the society. a) Evolution b) Planning c) Functioning d) None of these

Answer»

Correct option: c) Functioning

18731.

Which of the following is not a type of communication? 1. Verbal 2. Visual 3. Written 4. Neo-verbal

Answer»

4. Neo-verbal

Neo-verbal is not a type of communication.

18732.

A ______ is a collection of cells in the form of a grid (a network of lines that intersect each other, making rectangles). (a) Row (b) Range (c) Worksheet (d) Workbook

Answer»

A Worksheet is a collection of cells in the form of a grid (a network of lines that intersect each other, making rectangles.

18733.

How many parts of speech are there? (a) Five (b) Six (c) Seven (d) Eight

Answer»

Correct option: (d) Eight

18734.

The source of motivation and inspiration are: (a) Music (b) Activities (c) Sleeping (d) A and B

Answer»

Correct option: (d) A and B

18735.

Radhika has three colours available at her home i.e. red, yellow and blue. But she needs orange. Which two primary colours should be mixed to achieve the same? a. Red & yellow b. Yellow & blue c. Blue & red d. Red, yellow & blue

Answer»

a. red & yellow

Radhika has three colours available at her home i.e. red, yellow and blue. But she needs orange. red & yellow two primary colours should be mixed to achieve the same.

18736.

Mention a source of motivation and inspiration for the workers and management in banking sector.

Answer»

Sources of motivation and inspiration are: 

a) Books, 

b) Activities, 

c) Dreaming big etc.

18737.

Which one of the following is not a source of motivation and inspiration? (a) Pessimism (b) Dreaming Big (c) Music (d) Books

Answer»

(a) Pessimism

Pessimism is not a source of motivation and inspiration.

pessimism
is not a source of motivation and inspiration 
18738.

Which one of the following is not a source of motivation and inspiration? a) Music b) Books c) Activities d) Sleeping

Answer»

Correct option: : (d) Sleeping

18739.

Which of the following is not a source of motivation and inspiration? a) Pessimism b) Dreaming big c) Music d) Books

Answer»

Correct option: a) Pessimism

18740.

HTTP stands for _______1. Hyper Text Test Protocol2. Hyper Text Tool Protocol3. Hyper Text Transfer Protocol4. Hyper Test Transport Protocol

Answer» Correct Answer - Option 3 : Hyper Text Transfer Protocol

The correct answer is HyperText Transfer Protocol.

  • HTTP stands for HyperText Transfer Protocol.
  • The Hypertext Transfer Protocol (HTTP) is an application layer protocol in the Internet protocol suite model for distributed, collaborative, hypermedia information systems.
  • HTTP is the foundation of data communication for the World Wide Web, where hypertext documents include hyperlinks to other resources that the user can easily access, for example by a mouse click or by tapping the screen in a web browser.

  • Some important protocols:
    • SMTP - Simple Mail Transfer Protocol.
    • FTP - File Transfer Protocol.
    • TCP - Transmission Control Protocol
    • UDP - User Datagram Protocol
    • OSI - Open Systems Interconnection.
18741.

Which is not a web browser from the following?1. Safari2. Opera3. Mozilla Firefox4. Google

Answer» Correct Answer - Option 4 : Google

The correct answer is Google.

  • Google is not a web browser.
  • Google, is a search engine provided by Google. 
  • It is also the most-visited website in the world.
  • The order of search results returned by Google is based, in part, on a priority rank system called "PageRank".

  • Safari is a graphical web browser developed by Apple Inc.
  • Opera is a multi-platform web browser developed by Opera Software.
  • Mozilla Firefox is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. 
18742.

The basic unit of quantum information is1. BYTE2. GIGABIT3. QUBIT4. BIT

Answer» Correct Answer - Option 3 : QUBIT

The correct answer is QUBIT.

  • QUBIT
    • It is the basic unit of quantum information.
    • It is made using physical systems, such as the spin of an electron or the orientation of a photon.
    • They can be represented in 0, 1, and mixed states of 0 and 1 where it is both 1 and 0 at the same time.
    • In general, n qubits can take the values of 2n.
  • Eight bits is enough for a classical computer to represent any number between 0 and 255.
  • But eight qubits is enough for a quantum computer to represent every number between 0 and 255 at the same time.
  • In situations where there are a large number of possible combinations, quantum computers can consider them simultaneously.

  • A byte is a unit of digital information that most commonly consists of eight bits.
  • A bit may be used to represent a maximum of two values at a time, whereas A byte may store up to 256 different values.
  • 1 gigabit = 10bits = 1000000000 bits.
18743.

Trisha is always tense during exam time. She is a sincere and studious student, but the thought of exams creates anxiety in her. Which stress management technique that you would suggest to help her? a) Yoga b) Exercise c) Vacation with Family d) All of these

Answer»

Correct option: d) All of these

18744.

Ability of a person to do things that needs to be done without being influenced by someone or something is called ______. a) Self-Motivation b) Self Discipline c) Self Awareness d) Self-Regulation

Answer»

Correct answer is a) Self-Motivation 

18745.

Which of the following options describe a green economy correctly? A green economy ____. (a) uses less resources(b) uses more resources (c) causes more pollution (d) wastes more items

Answer»

Which of the following options describe a green economy correctly? A green economy uses less resources.

18746.

How is hearing different from Listening?

Answer»

Hearing is the act of sound perceiving by ear which is accidental, involuntary and effortless whereas listening is consciously done for a purpose which is focused, voluntary and intentional.

18747.

Sam is ________ the radio. A) listening to B) listening in C) hearing to D) hearing in

Answer»

Correct option is A) listening to

18748.

The conditional GET mechanism(a) Imposes conditions on the objects to be requested(b) Limits the number of response from a server(c) Helps to keep a cache upto date(d) None of the mentioned

Answer» Right choice is (c) Helps to keep a cache upto date

To explain I would say: The HTTP protocol requests the server of the website its trying to access so that it can store its files, images etc. in cache memory. This request of asking the server for a document considering a specific parameter is called conditional GET Request.
18749.

How books & music are considered as sources of motivation & inspiration?

Answer»

Books: Books are said to be best friends. They expand our horizon of thinking. They help us visualize the unknown and unchartered territories beyond our capacities. Books about heroic acts, inspiring lives and stimulating creativity help readers move beyond their routine lives. 

Music: Music is the language of the soul. A good inspiring piece touches every heart and can help create miracles.

18750.

_________ are the sources of motivation and inspiration (a) Music and books Which (b) Activities and Expansive thoughts (c) Living in the present and dreaming big (d) All the above

Answer»

Correct answer is

(d) All of the above