std 7 sanskrut ch 7 sem 2

Count each 7 which is not immediately preceded by 5 but is immediately followed by either 2 or 3. How many such 7's are there? 5 7 2 6 5 7 3 8 3 7 3 2 5 7 2 7 3 4 8 2 6 7 8

Consider the following in respect of the variate which takes values 2, 2, 2, 7, 7, 2, 7, 7: 1. The median is equal to mean. 2. The mode is both 2 and 7. Which of the above statements is/are correct?

{:("Column I",,"Column II"),((A) CH_(3)COONa,,(i) "Almost neutral"pH gt 7 "or "lt7),((B) NH_(4)CI,,(ii) "Acidic"pHlt7),((C)NaNO_(3) ,,(iii)"Alkaline "pH gt 7),((D) CH_(3)COONH_(4),,(iv)"Neutral "pH =7):}

Observe the following patterns and fill in the blanks to make the statements true: 7xx4=28 7xx3 = _____=28-7 7xx2 =_____ =_____-7 7xx1 = 7=____-7 7xx0= ____= ______ -______ 7xx-1= -7= ______-______ 7xx-2= ______= ______-______ 7xx-3= ______= ______-______

show that sin (2 (pi) / (7)) + sin (4 (pi) / (7)) + sin (8 (pi) / (7)) = (sqrt (7)) / (2)

The direction cosines of a normal to the plane 2x-3y-6z+14=0 are (A) (2/7,(-3)/7,(-6)/7) (B) ((-2)/7,3/7,6/7) (C) ((-2)/7,(-3)/3,(-6)/7) (D) none of these

sqrt7 - 3/5 sqrt7 + 2sqrt7

Pusa Sem 2 is a disease resistant crop variety of

Define the term fatty acids. Give the common and IUPAC names for the following fatty acids: (i) CH_(3) (CH_(2))_(14) COOH (ii) CH_(3) (CH_(2))_(16) COOH (ii) CH_(3) (CH_(2))_(7) CH=CH(CH_(2))_(7) COOH

An unsaturated fatty acid on ozonolysis yields one aldehyde H_(3)C(CH_(2))_(7)CHO and an aldehyde monocarboxylic acid OHC(CH_(2))_(7)COOH . Write down the structure and name of the acid.