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5351.

Write the conjugate acid of HCO3- ion.

Answer»

Conjugate acid of HCO3- is H2CO3.

5352.

Express the solubility of Ag2SO4 in terms of KSP.

Answer»

Correct expression

5353.

Define F-centre.

Answer»

The lattice site where instead of a negative ion, an electron is accommodated for electrical neutrality is known as F-centre (such centres are responsible for generation of colour in crystal).

5354.

According to Hardy Schulze rule arrange the following in increasing order of coagulating power.PO3-4, Cl–, [Fe(CN)6]4-

Answer»

Increasing order of coagulating power is based on the fact that higher the charge on the ion, higher will be its coagulating power.
Cl < PO3-4 < [Fe(CN)6]4-

5355.

Write harmful effects of tetrachloromethane.

Answer»

Tetrachloromethane causes liver cancer in human, dizziness, coma, irregular heart beat, eye irritation and it also depletes the ozone layer, (any one of two effects only).

5356.

Write down the IUPAC name of

Answer»

N, N-Dimethylaniline

5357.

Write factors affecting rate of reactions.

Answer»

Factors affecting rate of reactions are

  • Temperature
  • Pressure
  • Physical state of reactants
  • Catalyst
  • Concentration of reactants
5358.

Which class of drugs is used in sleeping pills?

Answer»

Tranquilizer

5359.

Define the Limiting molar conductivity.

Answer»

Limiting molar conductivity can be defined as the value of molar conductivity when the concentration approaches zero.

5360.

How will you classify brass and steel?

Answer»

Brass is a substitutional solid solution whereas steel is interstitial solid solution.

5361.

Write differences (at least two) between order and molecularity of a reaction.

Answer»

Difference between order and molecularity

OrderMolecularity
(i)It is sum of the powers of reactants in rate law expression.It is sum of powers of reactant present in law of mass action equation.
(ii)It is determined experimentally.It is determined from balanced chemical reaction.
(iii)It can be positive, negative, zero or fraction.It can be positive integer only.
(iv)It is applicable for all reaction.It is applicable only for elementary reaction.
5362.

Define specific rate constant.

Answer»

It will be equal to rate of reaction when concentration of all reactants is unity.

5363.

What are the factors that affect the solubility of a gas in a liquid?

Answer»

Factors affecting solubility in a liquid are temperature, pressure of gas, nature of gas and nature of solvent.

5364.

Write two differences between order and molecularity of reaction.

Answer»

Order

Molecularity

It is determined from rate law equation which is set on the basis of experiment.

It is determined from law of mass action equation based on balanced chemical reaction.
It may be positive, negative, zero or fractional.

It will be positive integer only it cannot be negative, zero or a fractional number.

5365.

In a communication system, what is meant by modulation? State any two types of modulation.

Answer»

The process in which a low frequency signal is superimposed on a high frequency wave, which acts as a carrier wave, is called modulation.

Two types of modulation:

(i) Amplitude Modulation (AM)

(ii) Frequency Modulation (FM)

5366.

Account for the following :Alcohols can form hydrogen bond with water, hence they are more soluble than hydrocarbons.Tertiary alcohol gives stable 3° carbocation which can lose p-hydrogen to give alkene instead of giving haloalkane.

Answer»
  1. Alcohols can form hydrogen bond with water, hence they are more soluble than hydrocarbons.
  2. Tertiary alcohol gives stable 3° carbocation which can lose p-hydrogen to give alkene instead of giving haloalkane.
5367.

A big percentage of the population lives below the poverty line in India. As a responsible student, suggest steps to reduce poverty. 

Answer»

Brief explanation :

  • breaking poverty cycle by helping attain self-sufficiency 
  • helping poor take responsibility 
  • providing educational and employment opportunities 
  • measures for improving mental health 
  • steps for empowering the poor 
  • any other relevant point
5368.

You are a career counsellor. Design an interview format to help Ahmed select an appropriate career.

Answer»
  • Interview format to have stages of the interview 
  • Each stage to have at least 2 appropriate questions 
5369.

What are some of the measures suggested by WHO to prevent suicide? What are the approaches that are useful in strengthening positive self-esteem in children?

Answer»

Some measures suggested by WHO include: 

• limiting access to the means of suicide 

• reporting of suicide by media in a responsible way 

• bringing in alcohol-related policies 

• early identification, treatment and care of people at risk 

• training health workers in assessing and managing for suicide 

• care for people who attempted suicide and providing community support 

To foster positive self-esteem in children the following approaches can be useful: 

• accentuating positive life experiences to develop positive identity. This increases confidence in self. 

• providing opportunities for development of physical, social and vocational 

• establishing a trustful communication. 

• goals for the students should be specific, measurable, achievable, relevant.

5370.

The kinetic energy per molecule of a gas at temperature T is ................. .(a) (3/2)RT(b) (3/2)KBT(c) (2/3)RT(d) 3/2 (RT/M)

Answer»

Correct Option (b) (3/2)KBT

 

5371.

If the particle starts its motion from mean position, the phase difference between displacement and acceleration is ................... .(a) 2π rad(b) ≠/2 rad(c) π  rad(d) ≠ 4 rad

Answer»

Correct Option (c)  π radians

5372.

The compressibility of a substance is the reciprocal of ............... .(a) Young's modulus(b) bulk modulus(c) modulus of rigidity(d) Poisson's ratio

Answer»

Correct Option (b) bulk modulus

5373.

A particle of mass m performs vertical motion in a circle of radius r. Its potential energy at the highest point is ................ .(a) 2 mgr(b) mgr(c) 0(d) 3 mgr

Answer»

Correct Option (a) 2mgr

5374.

Name the phenomenon which shows the quantum nature of electromagnetic radiation.

Answer» Photoelectric effect.
5375.

What do you understand by positive economics analysis?

Answer»

Positive economic analysis refers to the analysis in which we study what is or how an economic problem is solved by analyzing various positive statements and mechanisms.  These are factual statements and describe what was, what is and what would be. These statements can be tested, proven or disproven and do not involve personal value judgments. For example, if someone says that it is raining outside, then the truth of this statement can be verified. It deals with actual or realistic situations. Economists like Lionel Robbins considers economics as pure science.

5376.

Explain bankers's bank.

Answer»

Central Bank referred to as a Banker’s Bank because Central Bank has almost the same relation with the other commercial banks of the country that the commercial banks have with the common public. Central Bank keeps the cash balances of commercial banks and issues loans to them on requirements, in the same manner as the commercial banks do for its customers. That’s why , it is also called as bankers’ bank.

Commercial Banks are required to keep a certain minimum percentage of deposits as cash reserves with the Central Bank. Central Bank uses these reserves to meet emergency requirements of Commercial Banks. It is called Banker's Bank.

5377.

Malaria, typhoid, pneumonia and amoebiasis are some of the human infectious diseases. Which ones of these are transmitted through mechanical carriers? 

Answer»

Malaria and amoebiasis are transmitted through mechanical carriers.

5378.

Which compound in each of the following pairs will react faster by  SN1 reaction in aqueous KOH? Give reason :(a) CH3 – CH2 – Br or CH3 – CH2 – Cl(b) CH3 – CH2 – CH2 – CH2 – X or (CH3)3CX

Answer»

(a) CH3–CH2–Br is more reactive towards SN1 because it have good leaving group Rate of SN1 ∝ Leaving tendency of leaving group

(b) (CH3)3C–X is more reactive towards SN1,

due to formation of stable 3º carbocation. Rate of SN1 ∝ Stability of carbocation

5379.

oΛm for KCl, HCl and CH3COOK are 149.8S cm2 mol–1, 425.9S cm2 mol–1 and 114.4S cm2 mol–1 respectively. Calculate the value of oΛm for CH3COOH.

Answer»

ΛºCH3COOH = CH3COOK Λº + ΛºHCl – ΛºKCl

= 114.4 + 425.9 – 149.8

= 390.5S m2mol–1

5380.

Which of the following may act as an estoppel?a. Admissionb. Confessionc. Intentiond. Preparation

Answer»

(a) Admission

5381.

Saraswati Universty was created under the mandate of a Central Legislation which specified that the university should open a bank account with the Karamchari Bank. This is an:a. Administrative legislative actionb. Administrative judicial actionc. Simply administrative actiond. Purely administrative action

Answer»

d. Purely administrative action

5382.

An armed thief entered Aviral’s house. To save himself and his belongings, Aviral pushed the thief which resulted in head injuries to the thief. Is Aviral’s act justified under criminal law?a. Yes, causing injury under self defence is not a crime.b. No, causing hurt intentionally is a crime.c. Yes, because the injury was not serious.d. No, he should have called the police.

Answer»

a. Yes, causing injury under self defence is not a crime.

5383.

Ramika International Ltd. And Northstar Pvt. Ltd. have a dispute over production process which involved intricate trade secrets. Suggest the most suited ADR that can protect the trade secret while resolving the dispute:a. Arbitrationb. Mediationc. Conciliationd. LokAdalat

Answer»

a. Arbitration

5384.

The driver of a bus owned by State Road Transport Authority asked Rajni, a passenger to deboard the bus in a deserted place where no other means of transport was available. She alleged that her Fundamental Right was violated by the driver’s conduct. Can action be taken against the State Road Transport Authority?a. Yes, because Rajni was dropped at a deserted place.b. Yes, because State Road Transport Authority is state according to article 12.c. Yes, Fundamental Rights can be enforced against private entities.d. Yes, because she was not given a fair hearing.

Answer»

b. Yes, because State Road Transport Authority is state according to article 12.

5385.

Classify the consumer, intermediate or capital goods.Fertilizer used by a farmer.

Answer»

Intermediate goods

Reason: As fertilizer is used for further production during the same year.

5386.

Giving reasons, classify the normal resident of India or not.Indian officials working in the Indian Embassy in USA.

Answer»

Normal Resident

Reason: As their centre of economic interest lies in the home country.

5387.

Age influence the selection of clothing”. Explain with two suitable examples. What four points you will keep in mind while buying Salwar Kameez for your grandmother? 

Answer»

Age influence the selection of clothing example: 

i. For 6 months old child select – Comfortable, small, prints and light colour clothes. 

ii. For school going child select – dark colour, comfortable and easy to maintain clothes. 

Selection of Salwar Kameez for grandmother: 

i. Salwar Kameez should be of soft material as their skin become to it 

ii. It should be of light colour and small prints. 

iii. Neck should be big. 

iv. Kameez should not be too tight. 

v. Salwar should have elastic for easy wear. 

5388.

Expansion of DWCRA is ..........

Answer»

Development of women in rural areas.

5389.

------- is the eating disorder in adolescents which leads to skeletal appearance due to excessive weight loss.

Answer»

Anorexia Nervosa is the eating disorder in adolescents which leads to skeletal appearance due to excessive weight loss.

5390.

Two possible reasons for extreme depression in a sixteen year old boy can be ..... and .........

Answer»

Two possible reasons for extreme depression in classmate are: 

a.  Peer pressure 

b.  academic demands 

5391.

In spite of boiling, the drinking water was declared unsafe. What could be the four possible reasons for this ?

Answer»

Four possible reasons for drinking water being declared unsafe in spite of boiling are as follows 

1. The boiling was done for less than the minimum 10 minutes required. 

2. The container used for boiling the water was dirty. 

3. The water had not been strained before boiling, so that some suspended matter remained in it. 

4. It may still contain pesticides, insecticides and herbicides, as these are not eliminated by boiling.

5392.

How are two measurements taken to develop neckline of any shape? List any two points to be kept in mind for necklines.

Answer»

Measurement A-Depth of a neckline

Measurement B- Width of a neckline

Points to be kept in mind for necklines 

a. If neckline is made wider in the front, the same needs to be done for the back.

b. Avoiding deeper neckline for both front and back.

c. Measurement taken diagonally to be marked diagonally and measurement taken straight to be marked straight.

d. For curved neckline, square out 1/4inch at CB and CF.

5393.

How do you measure CB length for lower garment, shoulder length and sleeve length on dress form?

Answer»
  • CB length for lower garment- from CB waistline intersection at CB down to the desired length.
  • Shoulder length- from shoulder neck intersection to princess line to shoulder tip.
  • Sleeve length- shoulder intersection over the bent elbow to the wrist.
5394.

Sachin has to send his photograph to the passport office for the processing of his passport but his photograph clicked by the photographer is very dark due to insufficient light. Which colour tool will he use to lighten the color pixel of the photograph. Also write the steps for the same.

Answer»

Color Tools:

Curves Steps:

1. Open the image

2. Select the photograph using rectangle tool

3. Select Color->curves

4. Ensure that the Channel is set to value and Curve type is smooth.

5. Drag the curve upwards to lighten the photograph.

5395.

Ms. Shipra, an IT professional in a Global Educational Institute has created following performance sheet in a spreadsheet application. Help her in finding out the maximum marks, total, average and remarks.

Answer»

= max(b2 : e2)

=sum(b2:e2) or =sum(B2,C2,D2,E2) =average(b2:e2

 = if(h2>=40, “GO-AHEAD”, “REATTEMPT”)

5396.

Mention the full form of the following:(i) TIFF(ii) JPEG 

Answer»

(i) TIFF- Tagged Image Format File

(ii) JPEG - Joint Photographic Experts Group

5397.

(a) How is French placket constructed?(b) Where is it normally used?

Answer»

(a) The fabric is simply folded over and the buttonhole stitching secures the two/three layers.

(b) Stiff fronted formal evening shirts (white tie).

5398.

List two types each of skirts and pants worn by women.

Answer»

Skirt- Straight/gathered/pleated/tiered/paneled.

Pants- Straight/ bell bottom/ Capri/harem / jodhpurs.

5399.

Joint life policy of the partners is an account....

Answer»

Joint life policy of the partners is capital accounts in their profit sharing ratio.

5400.

Donation received for specific purpose is:(a) Assets(b) Receipt Revenue(c) Capital receipt(d) None of these 

Answer»

Donation received for specific purpose is Capital receipt.