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The data type of the array subscript is integer or int.

A variable that is declared outside any function is known as a global variable.

The data type of array subscript is integer or int.

The Selection statements are used to execute certain block of statements after evaluating the condition.

Subtriplicate ratio of 125 : 64 

= 3√125 : 3√64 = 5 : 4.

An if statement nestling inside another ‘if’ statement is termed as ‘a nested if’ statement. 

The data type of array subscript is integer or int.

A manipulator is a C++ is used to control the formatting of output and/or input values. Manipulators can only be present in input/output statements. The end1 manipulator causes a newline character to be output end1 is defined in the header file and can be used as long as the header file has been included.

Banker’s Discount is the Simple interest calculated by the banker on the face value of the bill i.e., BD = Ftr

A compound statement is a grouping of statements enclosed between the pair of flower braces ({}) in which each individual statement ends with a semi-colon.

int marks[6] = { 91,96,90,94,99,93};

Given C(-3, 2) r = 5 units

x₁ y₁

Equation of the circle is(x – x₁)² + (y – y₁)² = r²

x - (-3))² + (y – 2)² = 5²

(x + 3)² + (y – 2)² = 5² 

x² + y² + 6x – 4y – 12 = 0.

The purpose of end1 is to break the line in output statement. 

The = is an assignment operator and == is a relational operator. 

The variables declared within a function block are called local variables.

= (4.4 + 3)/(4 - 2) = (16 + 3)/2 = 19/2

The process of algorithmic solution or flowchart solution into a set of instructions in a programming language is called as coding. 

Mail merge is a process helps to generate letters by combing contents of one document with the content of addresses.

The intersection of a row and a column in a spread sheet is called a cell.

Optical Character Reader/Recognition.

A French philosopher Blaise Pascal invented “pascaline” the first mechanical calculator. 

The Gottfried Wilhelm Leibniz invented machine had addition, subtraction, multiplication, and division calculators whereas Pascaline had only an addition calculator.

The mechanism of allocating required amount of memory at run time is called dynamic allocation of memory. Sometimes it is required to allocate memory at runtime. When we declare array in any program, the compiler allocates memory to hold the array. Now suppose the numbers of items are larger than the defined size then it is not possible to hold all the elements and if we define an array large enough and data to be stored is less, in that case the allocated memory is wasted leading to a need for dynamic memory allocation. In this mechanism we use a pointer variable to which memory is allocated at run time.

The various memory allocation functions are described below:

(i) malloc( ): It is a memory allocation function that allocates requested size of bytes and returns a pointer to the first byte of the allocated space. The malloc function returns a pointer of type void so we can assign it to any type of pointer. It takes the the following form: 

ptr= (cast type *) malloc(byte-size);

where ptr is a pointer of type cast-type. For example, the statement

x=(int *) malloc(10 *sizeof(int)) means that a memory space equivalent to 10 times the size of an int byte is reserved and the address of the first byte of memory allocated is assigned to the pointer x of int type.

The malloc function can also allocate space for complex data types such as structures. For example: 

ptr= (struct student*) malloc(sizeof (struct student)); where ptr is a pointer of type struct student. 

(ii) calloc( ): It is another memory allocation function that allocates space for an array of elements, initializes them to zero and then returns a pointer to the memory. This function is normally used for requesting memory space at run time. While malloc allocates a single block of storage space, calloc allocates multiple block of storage, each of the same size, and then sets all bytes to zero. It takes the following form:  

ptr= (cast type *) calloc(n,element-size);

This statement allocates contiguous space for n blocks, each of size element-size bytes.

(iii) realloc( ): realloc is a memory allocation function that modifies the size of previously allocated space. Sometime it may happen that the allocated memory space is larger than what is required or it is less than what is required. In both cases, we can change the memory size already allocated with the help of the realloc function known as reallocation of memory. For example, if the original allocation is done by statement.

ptr= malloc(size);

then reallocation is done by the statement

ptr=realloc(ptr,newsize); which will allocate a new memory space of size newsize to the pointer variable ptr and returns a pointer to the first byte of the new memory block

French Philosopher Blaise Pascal invented the Pascaline. 

The different features of MS excel is as follows;

1. Excel Charts: Excel provides a vast number of chart types and options.

2. Formulas and Functions: Another great feature of Excel is the ability to embed formulas into cells to calculate data. In addition, an impressive list of built-in functions is provided that can be used to summarize data.

3. Cell Formatting: You can customize the formatting of a cell or range of cells. You can apply borders, cell background color, font size and color, number formatting and much more.

4. Sorting and Filtering: You can reorder the data or pick out just the data you need, based on parameters you set within Excel. Sorting and filtering your data will save you time and make your spreadsheet more effective.

5. Pivot Tables: Summarise large amounts of Excel data from a database that is formatted where the first row contains headings and the other rows contain categories or values.

Other features are: 

• Create and manipulate simple (flat-file) databases
• Establish relationships between sets of numerical data
• Apply arithmetic, mathematical or statistical functions to numerical datasets 
• Represent datasets in graphical or chart form

HTML is a markup language for describing web documents (web pages).

The general structure of HTML is as given below;

<HTML>

<HEAD>

<TITLE> Welcome to HTML Page </TITLE>

</HEAD>

<BODY> <CENTER>

<H1> Welcome to the World of Web Paging </H1>

</CENTER>

</BODY>

</HTML>

 A Web Page is marked by an opening HTML tag and a closing tag. The head section is defined with a starting tag and a closing tag. This section is usually contains a title for the Web Page. The text enclosed in the tags will appear in the title bar of the Web Browser when it displays the page.

The tag contains the entire information about the Web Page and its behavior. We can set up many options to indicate how our page must appear on the screen (like colour, location, etc..)

When an object of the class is created a compiler can automatically generates a constructor if it is not defined. It is considered that writing constructor for a class is a good practice because constructor takes over very important duty of initialization of an object being created and relieves us from this task.

(ii) It means that the constructor and destructor can be called directly by code in main() functions. 

Generally, a constructor and destructor should be defined under the public section of a class, so that its objects can be created and destroyed in any function. A private or protected constructor/destructor is not available to the nonmember functions. Thus, accessibility of a constructor or a destructor greatly affects the scope and visibility of their class.

(i) Constructor overloading.

(ii) Destructor. It will be invoked when scope of an object gets over.

A object that is existing must be scrapped off when it is o more needed. The task of scrapping off an object is carried out by a destructor. A destructor deinitializes an object and deallocates all allocated resources. Properties of destructor:

• Destructor functions are invoked automatically when the objects are destroyed. 
• There can be only one destructor for a class, means destructor can’t be overloaded.
• No argument can be provided to a destructor, neither does it returns any value.

The correct answer is 1, 2, 3 and 4.

• Neutrino is an elementary subatomic particle with no electric charge, very little mass, and 1/2 unit of spin.
• A neutrino is an elementary particle that usually travels close to the speed of light. Hence, Statement 1 is correct.
• It is electrically neutral and is able to pass through ordinary matter almost undisturbed.
• Neutrinos are created in nuclear reactions of beta decay.  Hence, Statement 2 is correct.
• Neutrino has a very tiny mass, no charge, and spins half. Hence Statement 3 is correct.
• It interacts very weakly with other matter particles so weakly that every second trillion of neutrinos fall on us and pass through our bodies unnoticed. This makes neutrinos extremely difficult to detect. Hence Statement 4 is correct.
• Neutrinos have a very small, but nonzero rest mass.
• Neutrinos are affected only by a weak sub-atomic force of a much shorter range than electromagnetism and are therefore able to pass through great distances in matter without being affected by it.

• Some important aspects of the 11th Five-year plan (2007-2012).
  • The average annual economic growth rate of 8%.
  • The farm sector grew at an average rate of 3.7% as against the 4% targeted.
  • The industry grew with an annual average growth of 7.2% against the 10% targeted.
  • Objective:-
    • Rapid and inclusive growth.
    • Empowerment through education and skill development.
    • Reduction of gender inequality.
    • Environmental sustainability.

(a) 3 

Explanation:

 (2.30 + 4.70) × 10⁵ = (7.00) × 10⁵ 

Trailing zeros in a number containing decimal point are significant also  power of 10 doesn’t add to significant figure 

 Hence number of significant figure = 3   

a. Substitution Reaction : Chloroform, CCl₄ preparation 

b. Addition Reaction : Conversion of unsaturated compounds into saturated. 

c. Combustion: Preparation of polymers like PVC. 

d. Thermal Cracking: Butane (LPG)can be prepared from higher hydrocarbons

Propene, Butene

a. CH₂Cl + Cl₂ → CH₂Cl₂ + HCl Substitution reaction 

b. CH = CH + H₂ → CH₂ = CH₂ Addition Reaction

c. CH₄ + 2O₂ → CO₂ + H₂O Combustion 

d. CH₃ – CH₂ – CH₃ → CH₂ = CH₂ + CH₂ + CH₄ Thermal cracking

a. A – CH₂ = CH₂ , B – CH₃Cl 

b. Substitution reaction