Explanation

Fractional distillation separates miscible liquids that have different boiling points.

It is useful for separating ethanol from a mixture of ethanol and water,

and for separating crude oil into different products such as petrol, diesel, and kerosene.

Explanation

It can be written as 7/13

And for percentage, we have to multiply with 100 So, 7/13 * 100 = 700/13 =53.00

Given answers near to 52%

Explanation

In solar furnaces, concave mirrors are used for converging the sun's rays.

concept:

Concave mirrors reflect and focus incoming light rays (parallel) at a point, called the focus point.

Depending on the distance of an object from the reflecting surface, different types of images are formed.

Explanation

Sparked by the arrest of Rosa Parks on 1 December 1955,

the Montgomery bus boycott was a 13-month mass protest that ended with the U.S. Supreme Court ruling that segregation on public buses is unconstitutional.

Date: December 5, 1955 – December 20, 1956 

Explanation

The average length of pregnancy is 9 months 240 days and 40 weeks.

**

concept

Pregnancy is counted from the first day of your last menstrual period.

This means an extra 2 weeks are counted at the beginning of your pregnancy when you aren't actually pregnant.

So pregnancy lasts 10 months (40 weeks)

—not 9 months—because of these extra weeks.

Explanation

• ‘’ The fool shot himself in the foot “is a  Reflexive Pronoun.
• ’احمق نے اپنے پاؤں میں گولی مار لی‘

Explanation

If the District Police Officer considers any order of the Zila Nazim unlawful or mala fide,

it may seek recourse to the District Public Safety and Police Complaints Commission

whose decision will be final and binding on the District Police Officer as well as the Zila Nazim.

Explanation

The missile's existence was first reported after a test-firing on 19 April 2011.

Pakistan's first flight tested the Nasr in April 2011

with further tests in May 2012, February 2013, November 2013, September 2014, and July 2017.

Explanation

The average age of six girls is 126 months. 

=(120+124+123+130+130+129+130)/7

=(886)/7

=126

Sh5-9-2023

Explanation

False alarms of fire

(1)A person commits an offence if he knowingly gives or causes to be given a false alarm of fire to a person acting on behalf of a fire and rescue authority.

(2)A person guilty of an offence under subsection (1) is liable on summary conviction—

(a)to a fine not exceeding level 4 on the standard scale,

(b)to imprisonment for a term not exceeding 51 weeks, or

(c)to both.

(3)In relation to an offence committed before the commencement of section 281(5) of the Criminal Justice Act 2003 (c. 44), the reference in subsection (2)(b) to 51 weeks is to be read as a reference to 3 months.

SH27-8-2023