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4301.

A game of numbers has cards marked with 11,12,13,........40, A card is drawn at random. find the probability that the number on the card drawn is:(i) A perfect square(ii) Divisible by 7

Answer»

When a card is drawn at random, the possible outcomes are 11, 12,13 .....  40

Clearly, total number of all possible nutcomes = 30

(i) For getting a perfect square:

The favourable outcomes are 16,25,36

No, of favourable outcomes = 3

Required probability = 3/30 = 1/10

(ii) For getting a number divisible by 7:

The favourable outcomes are: 14,21,28,35

No. of favourable outcomes = 4

Required probability = 4/30 = 2/15

4302.

Explain why phenolphthalein is used as an indicator in acid-base titration.

Answer»

Phenolphthalein is a complex weak organic acid (HPh). Its undissociated molecule (HPh) is colourless while its ion (Ph-) is pink in colour. pH range of phenolphthalein is 8 – 9.8.

In acid-base titration as the medium changes from acidic to basic, the following equilibrium shifts to right. 

HPh ⇌ H+ + Ph- and solution turns pink from colourless giving its endpoint. When medium changes to acidic, equilibrium shifts to left and the solution becomes colourless.

4303.

Define personality according to Cattell.

Answer»

According to Raymond Cattell (1970), “Personality is that which permits a prediction of what a person will do in a given situation”

4304.

In Bohr’s model of hydrogen atom, radius of the first orbit of an electron is r0. Then, radius of the third orbit is : (a) r0/9 (b) r0 (c) 3r0 (d) 9r0

Answer»

Then, radius of the third orbit is 3r0

4305.

Give three ways in which the metal zinc differs from the non-metals carbon. At least one of the differences must be a chemical difference.

Answer»

The three ways in which metal zinc differs from the non-metal carbon is:

1. Zinc has a valency 2 and carbon has valency 4.

2. Zinc does not form hydride but carbon does (CH4).

3. Oxides of zinc are amphoteric (ZnO) whereas oxides of carbon are acidic (CO2) and neutral (CO).

4306.

State a reason why zinc is used in:(a) galvanization, (b) dry cells (c) cosmetics?

Answer»

(a) To prevent from rusting.

(b) Due to strong electro positive nature, it easily forms Zn+2 ions.

(c) Antiseptic in face creams.

4307.

Write the equation for the reaction that occurs at the cathode during the extraction of aluminium by electrolysis.

Answer»

At cathode : 2 Al3+ + 6e- ----> 2Al

4308.

Write the equation for the reaction that occurs at the cathode during the extraction of aluminium by electrolysis

Answer»

At Cathode : Al3+ + 3e- ⟶ Al

4309.

Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.

Answer»

Cryolite (Na3AIF6)

4310.

Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.

Answer»

The compound is Cryolite.

4311.

Write short notes on Turnkey Projects.

Answer» Turn-key refers to something that is ready for immediate use, generally used in the sale or supply of goods or services. Since full responsibility for the project rests upon the contractor, the number of interfaces is reduced to the one point of contact instead of a multitude of subcontractors. This gives the customer much greater visibility into the project process as well as leaving the task of coordinating all the subcontractors to the one responsible primary contractor. Turnkey projects tend to have short project execution times, rapid return on investment, and minimal delays.
4312.

Write short notes on Role of Promoters.

Answer»

Promoters perform the following functions: 

• Conceive a business opportunity or the idea of starting a new business. 

• Conduct a preliminary analysis of the idea to determine its profitability and feasibility. 

• Carry out a detailed investigation in order to determine the nature, scope and requirements of the proposition. 

• Appoint brokers, underwriters, solicitors and bankers for the company.

4313.

In mitosis : (a)  Two cells are produced.(b)  Four cells are produced.(c)  Eight cells are produced(d)  Six cells are produced.

Answer»

In  mitosis  Two cells are produced

4314.

Choose the odd one in each of the following : i.  GH, ACTH, ADH, TSH ii.  Cyton, Axon, Dendron, Cerebrum iii.  Chromatid, centromere, spindle and centriole iv.  Chlorophyll, Haemoglobin, Starch, CO2 v.  Guttation, Bleeding, Transpiration, Osmosis.

Answer»

(i)  ADH

(ii)  Cerebrum

(iii) Centriole 

(iv)  Haemoglobin 

(v) Guttation

4315.

Complete the following sentences (i) to (v) by filling the appropriate word or terms :i.  The process by which molecules distribute themselves evenly within the space they occupy is termed as ………………….. ii.  The organization which provides relief to victims of any natural calamity is the ……….… iii.  The ear ossicle in contact with oval window of the inner ear is the ….…….… iv.  Macula is present …….…….… v.  Urine is yellow due to the presence of pigment called as …..…….…

Answer»

(i)  Diffusion

(ii)  Red Cross

(iii)  Stapes 

(iv)  In the retina

(v) Urochrome

4316.

Mention whether the following statements are True or False. If, False, rewrite the wrong statement in its correct form by changing the first or last word only. i.  The unit of light absorbed by the chlorophyll during photosynthesis is the proton.ii.  The part of the ear associated with balance is the cocklea.iii.  Pregnancy in women can be prevented by the method of vasectomy.iv.  Cones are the receptor cells in the retina of the eye sensitive to day lightv.  Brain is covered by meninges. 

Answer»

(i)  False, The unit of light absorbed by the chlorophyll during photosynthesis is called photon or quantum.

(ii)  False, The part of ear associated with balance is the semi-circular canals.

(iii)  False, Pregnancy in women can be prevented by the method of tubectomy.

(iv)  False, Cones are the receptor cells in the retina of the eye sensitive to bright light. 

(v)  True.

4317.

Give the IUPAC names of the following coordination compounds:(i) K2[Zn(OH)4](ii) [CO(NH3)5 (CO3)] Cl.

Answer»

(i) Potassium tetrahydroxozincate (II)

(ii) Pentaamminecarbonatocobalt (III) chloride

4318.

Answer the questions below, relating your answer only to salts in the following list:Sodium chloride, anhydrous calcium chloride, copper sulphate – 5 - water. (i)  What name is given to the water in the compound copper sulphate – 5 – water(ii)  If copper sulphate – 5 – water is heated, the water is driven off leaving anhydrous copper sulphate (1)  What is the color of anhydrous copper sulphate?(2)  By what means, other than heating, could you dehydrate copper sulphate – 5 – water and obtain anhydrous coppers sulphate?(iii)  Which one of the salts in the given lists is deliquescent?

Answer»

(a) (i)  Water of crystallization.

(ii) (1)  Dirty white color

(2)   Add a few drops of conc, sulphuric acid to blue colored crystals of copper (II) sulphate. anhydrous copper (II) sulphate will be left after some time.

(iii)  Anhydrous calcium chloride.

4319.

Name the products formed when: (i)  Sodium acetate is heated with soda lime.(ii)  Ethyl bromide is treated with a queous potassium hydroxide.(iii)  Ethanol is heated with Al2O3. (iv)  Methane is treated with ozone.(v)  A mixture of water gas and hydrogen is passed over catalyst under pressure.

Answer»

(i)  Methane

(ii)  Ethanol

(iii)  Ethene 

(iv)  formaldehyde

(v)  Methanol

4320.

Ammonium hydroxide smells of ammonia. Give scientific reasons :

Answer»

When ammonium hydroxide is kept exposed to air, ammonia gas is evolved, owing to this, ammonium hydroxide smells of ammonia.

4321.

Giving reasons state which of the two- a solution of HCl in water or in toluene is an electrolyte.

Answer»

HCl dissolves both in water and toluene, when HCl dissolves in water it ionizes and forms hydronium and chloride ions. Whereas this ionization is not observed in toluene hence a solution of HCl in water can be used as an electrolyte.

4322.

Write the reaction that takes place at the anode

Answer»

Reaction at anode -

Oxidation reaction : Cu -------> Cu+2 + 2e-

4323.

For the electro-refining of copper :What is the cathode made up of ?

Answer»

Pure copper metal

4324.

Explain the term relaxation training.

Answer»

Relaxation training describes bodily reactions in calm, meditative emotional states.

4325.

Explain the term belief.

Answer»

Beliefs are an acceptance that something exists or is true, especially without proof or any logic.

4326.

In a regular prism, what is the relation between angle of incidence and angle of emergence when it is in the minimum deviation position ?

Answer»

Angle of incidence = Angle of emergence in the case of minimum deviation

4327.

Mention any two functions of the Speaker related to Control over the Committees

Answer»

(i) He appoints Chairman of all committee of the House. 

(ii) He issues direction to the Chairman in all matters relating to their working and the procedure to be followed.

4328.

What do we mean to say that Legislative Council is a permanent house? 

Answer»

He issues direction to the Chairman in all matters relating to their working and the procedure to be followed.

4329.

(a) Name the bill that cannot originate in the Rajya Sabha. (b) What is meant by the term 'quorum'? (c) What is the maximum gap allowed between the two parliamentary sessions? (d) Who administers the oath of office to the Council of Ministers? (e) What is an Ordinance? (f) State any one reason why the President is elected indirectly. (g) State any one administrative function of the Cabinet. (h) Name any two writs issued by the Supreme Court. (i) Name the highest criminal court in a district. (j) What is meant by Lok Adalats?

Answer»

(a) Money bill can not originate in the Rajya Sabha. 

(b) Quorum refers to the minimum number of members of an assembly or society that must be present at any of its meetings to make the proceedings of that meeting valid. 

(c) Maximum gap is not more than six months between two parliamentary sessions. 

(d) The President of India administers the oath of office to the Council of Ministers. 

(e) Ordinances are ephemeral laws that are promulgated by the President of India on the recommendation of the Union Cabinet. They can only be issued when Parliament is not in session. They enable the Indian government to take immediate legislative action. 

(f) Indian constitution does not want to give complete authority to a single person. So the Electoral College concept for electing the President of India is one of the many checks and balances present in it. 

(g) Policy formation is an administrative function of the Cabinet. 

(h) Habeas Corpus and Mandamus are two of the writs issued by the Supreme Court. 

(i) The highest criminal court in a district is that of the Session’s Judge. 

(j) Lok Adalat, as the name suggests, means People’s Court. ‘Lok’ stands for People and the word ‘Adalat’ means Court. Lok Adalat is a special kind of people’s court in which disputes are solved by direct talks between the litigants.

4330.

Mention the quorum of the Vidhan Sabha. 

Answer»

The quorum of the Vidhan Sabha is 10 members of 1/10 of the total membership of the House whichever is more.

4331.

Explain how attitude and opinion act as a barrier to effective communication.

Answer»

Attitude and opinion act as a heavier to effective communication because the influence of „ attitude which is the predisposition to act or not to act in a certain way it is a mental position involving a fact or state. Clearly, if people have made up their minds they cannot objectively listen to what is said.

4332.

Why is communication called a two way process ?

Answer»

Communication is called a two way process because every action has an equal opposite and simultaneous reaction as per Newton Laws of motion. The same logic applies to communication. It is called a two way process because when you communicate there are two subjects involved here one is 

(a) the person who is communicating and 

(b) the person is listening. 

Ex. When you talk to your friend – two people are involved when you are talking to a group two sides are involved.

When you are writing one side is you (you are writing your thoughts) the receiving side is – people who read what you have written (that is second subject here). So it is very important that not only you are sure of what you are talking but also people who are listening to you are sine they understood it is the right way.

4333.

Recruitment and selection are interdependent. Both are meaningless without each other. Explain.

Answer»

Recruitment is the first stage which attract a large number of candidates so that the second stage i. e., selection can be done in a proper manner. Both recruitment and selection are interdependent and are meaningless without each other.

4334.

Give two points of distinction between retrenchment and layoff.

Answer»

2 points of distinction between retrenchment and layoff are: Retrenchment means any termination which is not a disciple may action inflicted on a workmen or VRS or retirement or superannuation or ending of a fixed term contract or termination of service due to continued ill health. Layoff means failing refusal or inability of employer due to shortage of raw material, coal, power, break down of machinery to provide employment.

4335.

Give two points of distinction between each of the following:(i) Ordinary Resolution and Special Resolution. (ii) Annual General Meetings and Extra Ordinary General Meeting. (iii) Private Report and Public Report. (iv) Statutory Report and Non-Statutory Report

Answer»

 

(i)

Special ResolutionOrdinary Resolution
A resolution shall be an ordinary resolution when at a general meeting of which the notice required under this Act has been duly given, the votes cast (whether on a show of hands, or on a poll, as the case may be), in favor of the resolution (including the casting vote, if any, of the chairman) by members w ho. being entitled so to do, vote in person, or where proxies are allowed, by proxy, exceed the votes, if any, cast against the resolution by members so entitled and voting.A resolution shall be a special resolution when – (a) the intention to propose the resolution as a special resolution has been duly specified in the notice calling the general meeting or other intimation given to the members of the resolution; (b) the notice required under this Act has been duly given of the general meeting; and (c) the votes cast in favor of the resolution (whether on a show of hands, or on a poll, as the (base may be) by members who, being entitled so to do, vote in person, or where proxies are allowed, by proxy, are not less than three times the number of the votes, if any, cast against the resolution by members so entitled and voting.

(ii) Annual General Meeting : 

Every company shall in each year hold in addition to any other meetings a general meeting as its annual general meeting. Such a meeting will be held not more than fifteen months shall elapse betw een the date of one annual general meeting of a company and that of the next. A company may hold its first annual general meeting within a period of not more than ‘ eighteen months from the date of its incorporation; and if such general meeting is held within that period, 

it shall not be necessary for the company to hold any annual general meeting in the year of its incorporation or in the following year: 

Every annual general meeting shall be called for a time during business hours, on a day that is not a public holiday. 

(iii) Extra Ordinary General Meeting : The Board of Directors of a company shall proceed duly to call an extraordinary general meeting of the company. The requisition shall set out the matters for the consideration of which the meeting is to be called, shall be signed by the requisitionists and shall be deposited at the registered office of the company. The requisition may consist of several documents in like form, each signed by one or more revolutionists. 

(iv) Statutory Report: The Companies Act of 1956 has made it compulsory for all companies to maintain certain sets of books of account for recording the financial transactions and to publish its annual statements in the prescribed form from time to time. 

Some important provisions relating to preparation and publication of final accounts are as follows: 

• Publication of Balance Sheet 

• Form and Contents of Balance Sheet and Profit and Loss Account etc. 

If the directors fail to do so, that is considered civil and criminal offence and they may be penalized for that offence. So all companies disclose this information without failure. 

Non Statutory Reports: 

Non-statutory report is also at par in importance with statutory disclosure to get the complete idea of the companies business and prospects. It is discretionary to give non-statutory information in the annual reports. It depends on the company’s policy to disclose it.

4336.

A consignment of 1000 bed-sheets received by your organization has the following defects :• 200 bed-sheets are of the color not ordered. • 60 bed-sheets have defective weaving. In the light of these defects, write a letter of complaint to the supplier, M/s A. B. C. Ltd.

Answer»

KHANNA HOSIERY PVT LTD 

121, Khanna Road 

Ludhiana-141001 

Phone-0161-2267356-62 

Email: [email protected]

30.04.2015

The Sales Manager 

M/s A.B.C. Hand looms 

G T Road 

Panipat-136101 

Dear Sir,

SUBJECT : DEFECTS AND DISCREPANCIES IN ITEMS SUPPLIED BY YOUR FIRM 

REFERENCE: ORDER NO. 121 DATED 25.04.2015

With above referred order, we had ordered the following items to your firm :

1. Classic Bed-Sheets 200 Pink 

2. Classic Bed-Sheets 300 Blue 

3. Evergreen Bed-Sheets 200 Green 

4. Evergreen Bed-Sheets 300 Orange 

We have received the consignment today and noted that Classic Bed-Sheets (200 number) have been received in Yellow color instead of Pink Colour. Out of 300 bedsheets of Evergreen mark, 60 bed-sheets have defective weaving and cannot be sold due to the visible defect. 

We are getting the items packed for return and the same will be dispatched to your firm by next delivery service. On receipt of the items, you may credit the full proceeds of returned items, to our Account no. 0800100018811.

Yours faithfully, 

(Narender Kumar) 

Purchases In charge.

4337.

Write short notes on : (i) Under Certificate of Posting (ii) Franking Machine.

Answer»

Under Certificate of Posting : It was a postal service in which the ordinary letters were sent and post office issued a confirmation on a paper that the said article has been received by it. There was a nominal fee of ₹ 2/- up to three articles (letters). In addition to postal stamps affixed on the envelopes, the sender had to write the detail of addressee on a plain paper and had to affix stamps of ₹ 2. 

This paper, after putting the Post Mark, was returned to the sender of the articles. This service served a legal proof that article had been sent by the sender. The Postal Department has discontinued the UPC service (Ordinary post service) from the last few years. 

The franking machine is used to weigh and correctly frank all of your outgoing mail, meaning you no longer need to waste time standing in lengthy Post Office queues to wait on mail being processed. It will do all of this and more for you, allowing you to run your office and manage your time more efficiently. You are effectively cutting out the middle man, by doing the job of the person behind the counter at the Post Office.

4338.

State one similarity and one difference between while and for loop.

Answer»

One similarity between while and for loop is that they both are entry controlled loop i.e. they both will check the condition for true or false. If the condition is true then only the entry within the loop is permitted. 

One difference between while and for loop is that while loop is best suited for those situations where the number of iterations are not known in advance where as for loop is best suited for those stations where the number of iterations are already known in advance.

4339.

Write one word ansiver for the following :(i) A method thatyconverts a string to a primitive integer data type. (ii) The default initial value of a boolean variable data type.

Answer»

(i) int x = Integer.valueOf (s); 

(ii) The default initial value of a boolean variable data type is false.

4340.

State the data type and values of a and b after the following segment is executed. String s1=“Computer”, s2=“Applications”;a=(s1.compareTo(s2));b=(s1.equals(s2));

Answer»

int, a = 2 

boolean, b = false

4341.

State the method that:(i) Converts a string to a primitive float data type. (ii) Determines if the specified character is an uppercase character.

Answer»

(i) Float.valueOf (); 

(ii) Character.isUpperCase ();

4342.

Which of the following are valid comments ? (i) /* comment */ (ii) /* comment (iii) / / comment (iv) */ comment */

Answer»

The right option is (i) /* comment */  (iii) //comment

4343.

What does zero cross elasticity of demand between two goods imply? Give an example to explain.

Answer»

Zero cross elasticity of demand between goods implies that two goods are not related to each other. In other words, the change in the price of one commodity (Y) does not affect the demand for another commodity (X). 

For example: a change in the price of sugar is not likely to influence the demand for a fan. So their cross elasticity of demand will be zero.

4344.

Differentiate between monopoly and monopsony. Give an example for each.

Answer»
BasisMonopolyMonopsony
1. MeaningIt is a market structure in there exists only a single seller of a product who is the sole producer of the product which has no close substitutes.It is a market structure in which there exists only a single buyer of a product in the market.
2. ExampleIndian Railways which is owned by the Government of India.In a village one textile mill purchase cotton from the farmers of that village. So the textile mill is the monopsony firm which is the only buyer of cotton produced by the farmers of the village.
4345.

Why is the marginal cost curve U shaped?

Answer»

MC curve is ‘U’ shaped because of the law of variable proportions. As output increases, MC curve negatively slopes (due to increasing returns to the variable factor), reaches the minimum and then slopes positive or upwards due to decreasing returns to the variable factor.

4346.

What is meant by Sanskritization ?

Answer»

This term was coined by M. N. Srinivas, Sanskritization is the process by which a low caste Hindu adopts the customs, traditions, ideology and rituals of the twice bom castes (Brahmin, Kshatriyas and Vaisyas); which is followed by a claim to a higher position in the caste hierarchy.

4347.

Define Xenophobia.

Answer»

Xenophobia is the fear of what is perceived to be foreign or strange. It can be manifested in many forms such as the fear of losing identity, aggression, suspicion about the activities of a particular group, and the desire to eliminate a particular group in order to secure a presumed purity. ’

4348.

What is rust? Give the equation for the formation of rust.

Answer»

Rusting is the slow oxidation of iron by atmospheric oxygen in the presence of water.

Equation:

4Fe + 3O2 +2x H2  2Fe2O2.xH2O

4349.

Name the radioactive radiations which have the least penetrating power.

Answer»

α -radiations have the least penetrating power.

4350.

 Give one use of radio isotopes.

Answer»

Radio isotopes are used to cure many diseases such as leukaemia, cancer etc. by radiation therapy.