Chem-DSE-9: Computer Applications in Chemistry — DU B. Sc. Life Science (Chemistry) Previous Year Question Papers

Computer-Applications 1n Name-of the Course I. (a) Write the full form of following abbreviation: (iii) VIRUS (b) Write a program to estimate the mean and variance of 10 given numbers : (c) Write the output of the following: (iii) Print "CARBON" "HYROGEN", ''NITROGEN (iv) Print "CHEM"; "PHY"; "MATH" (v)_ Print TAB(2); "GUESS" 2. (a) Write the purpose of following library function. (iii) SIN(X) (b) Identify the errors 1n the following BASIC statement and correct them: (iii) For A= 12 TO 3 (v) for x = 0 to 10 step -2 For y = 0 to 20 step .5 (c) Write a program to find the pH of 0.01M acetic acid solution using the following equation. .3. (a) Explain the following terms :- (iii) High level language (b) Write a BASIC formula that corresponds each of the following algebraic expression : (c) Write all the steps to get the table of SIN(0) and COS(e) and their curves as a output in EXCEL. 4. (a) Explain the function of following syntax command: (b) Fill in the blanks : statement 1s not executed 1n (ii) ____ is the smallest unit of memory size. (iii) ____ is a set of instructions written for the computer. (iv) ____ function gives remainder as the output. (v) Cell D4 contains the formula= Cl +C2. Formula that will be seen when we paste this into cell E5 ___ _ (c) Write the output of the following program: 5. (a) Write a program to enter the elements of a matrix using READ .... DATA statement and print both the original matrix and its transpose in matrix form. (b) Write the full form of following abbreviation : ( c) What are the non-empirical quantum mechanical method of calculations? Name and explain them. 6. (a) How 1s the "wrap text" feature used 1n MS (b) What is the $ symbol used along with the cell address in Excel? ( c) What is the difference between single subscripted variable and double subscripted variables? ( d) When do we get the following error messages in a BASIC program? (i) Out of data (ii) NEXT without FOR (2,2,2,4)