Q. Describe the Limit Test for Sulphate as per IP 1985 and IP 1996.
Answer:
Limit Test for Sulphate
• The (Limit Test for Sulphate) is used to detect and control the amount of (Sulphate Impurity) present in pharmaceutical substances.
• It is based on the formation of (Barium Sulphate), which produces (Turbidity/Opalescence).
• The turbidity of the (Test Solution) is compared with that of the (Standard Solution).
Principle
• (Sulphate Ions) react with (Barium Chloride) to form (Barium Sulphate)
Founder: Martin Seligman (1998)
Scientific study of strengths, well-being, happiness, and flourishing.
Aim: Build strengths, not just treat illness.
Scope: Happiness, optimism, hope, resilience, mindfulness, flow, character strengths.
Keywords: Strengths • Flourishing • Well-being • Positive emotions
Happiness
Strengths
Flourishing
Happiness + Self-realization
#What is Social Innovation? How does entrepreneurship create social value? Explain
Social innovation is the process of developing new ideas, products, services, or business models that solve social, economic, or environmental problems while improving the quality of life of people.
Scientific Study - Group B (Very Short Questions) [1 Mark]
1. (2081 Koshi Q.No. 2a)
Dependent variable: Solubility of salt.
2. What is the dependent variable in throwing a stone with a stretched rubber band?
Answer: Distance travelled by the stone.
3. Write the fundamental units included in the unit of force.
Answer: Kilogram (kg), metre (m) and second (s).
4. Write a difference between fundamental unit and derived unit.
Answer: Fundamental units are independent, whereas derived units are formed from fundamental
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GCD (Greatest Common Divisor) is the largest positive integer that divides two or more integers exactly.
2. Find the prime factorization of 1330. (1 Mark)
1330=2×5×7×19
A residue modulo mmm is any integer equivalent to another integer modulo mmm.
If the moduli are pairwise coprime, a system of congruences has a unique solution modulo the product of the moduli.
JAVASCRIPT: 1. JS is a fast-growing language, with a LOT of features being added to every release! JSONP, arrow functions, arguments, call arguments, rest, blob 'DOMString', a 'download' button, apply() vs call(). 1. JSONP (JSON with Padding), which was a technique used before modern CORS support to get data from another website. JSONP (JavaScript Object Notation with Padding) is an older technique used to retrieve data from a server when normal AJAX requests using XMLHttpRequest (XHR) or fetch(
9. A researcher wants to know the intelligence of students in a school. He selected two groups of students. In the first group there 150 students having mean IQ of 75 with a S.D. of 15 in the second group there are 250 students having mean IQ of 70 with S.D. of 20. Is there a significant difference between the means of two groups ?
For Group I:
Sample size,
n1=150n1=150
Sample mean,
xˉ1=75xˉ1=75
Standard deviation,
s1=15s1=15
For Group II:
Sample size,
The marks obtained in Statistics in a certain examination found to be normally distributed. If 15% of the students ≥ 60 marks, 40% < 30 marks, find the mean and standard deviation?
where μμ is the mean and σσ is the standard deviation.
P(X≥60)=0.15P(X≥60)=0.15
P(X<30)=0.40P(X<30)=0.40
We need to find μμ and σσ.
Hence,
P(X<60)=0.85P(X<60)=0.85
From the standard normal table,
P(Z<1.04)