Monthly Mock Test (November 30) - NEET MCQ

# Monthly Mock Test (November 30) - NEET MCQ

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## 30 Questions MCQ Test Daily Test for NEET Preparation - Monthly Mock Test (November 30)

Monthly Mock Test (November 30) for NEET 2024 is part of Daily Test for NEET Preparation preparation. The Monthly Mock Test (November 30) questions and answers have been prepared according to the NEET exam syllabus.The Monthly Mock Test (November 30) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Monthly Mock Test (November 30) below.
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Monthly Mock Test (November 30) - Question 1

### A hollow metal sphere of radius 10 cm is chargedsuch that the potential on its surface is 80 V. Thepotential at the centre of the sphere is [1994]

Detailed Solution for Monthly Mock Test (November 30) - Question 1

Potential at the centre of the sphere
= potential on the surface = 80 V.

Monthly Mock Test (November 30) - Question 2

### The four capacitors, each of 25μ F are connected as shown in fig. The dc voltmeter reads 200 V. The charge on each plate of capacitor is    [1994]

Detailed Solution for Monthly Mock Test (November 30) - Question 2

Charge on each plate of each capacitor

Q = CV =  25 x10-6 x 200
= 5 x10-3C

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Monthly Mock Test (November 30) - Question 3

### Energy stored in a capacitor is

Detailed Solution for Monthly Mock Test (November 30) - Question 3

Energy stored in capacitor

Monthly Mock Test (November 30) - Question 4

A capacitor C1 is charged to a potential difference V. The charging battery is then removed and the capacitor is connected to an uncharged capacitor C2. The potential difference across the combination is

Detailed Solution for Monthly Mock Test (November 30) - Question 4

Charge Q = C1V
Total capacity of combination (parallel)

C = C1+ C2

Monthly Mock Test (November 30) - Question 5

Charges +q and –q are placed at points A and B respectively which are a distance 2L apart, C is the midpoint between A and B. The work done in moving a charge +Q along the semicircle CRD is     [2007]

Detailed Solution for Monthly Mock Test (November 30) - Question 5

Potential at C = VC = 0
Potential at D = VD

Potential difference

Monthly Mock Test (November 30) - Question 6

Four electric charges +q, +q, –q and – q are placed at the corners of a square of side 2L (see figure). The electric potential at point A, midway between the two charges +q and +q, is         [2011]

Detailed Solution for Monthly Mock Test (November 30) - Question 6

Distance of point A from the two +q
charges = L.
Distance of point A from the two –q
charges =

Monthly Mock Test (November 30) - Question 7

A, B and C are three points in a uniform electric field. The electric potential is [NEET 2013]

Detailed Solution for Monthly Mock Test (November 30) - Question 7

Potential at B, VB is maximum
VB > VC > VA
As in the direction of electric field
potential decreases.

Monthly Mock Test (November 30) - Question 8

Which of the following is an insulator ? [1992]

Detailed Solution for Monthly Mock Test (November 30) - Question 8

Diamond is an insulator.

Monthly Mock Test (November 30) - Question 9

Without losing its concentration ZnCl2 solution cannot be kept in contact with [1998]

Detailed Solution for Monthly Mock Test (November 30) - Question 9

With out losing its concentrati on Zn Cl2 solution can not kept in contact with Al because Al is more reactive than Zn due to electrode (reduction) potential.

Monthly Mock Test (November 30) - Question 10

The most convenient method to protect the bottom of ship made of iron is [2001]

Detailed Solution for Monthly Mock Test (November 30) - Question 10

For bottom of ship to be protected it is connected with more reactive metal than iron like magnesium. This technique is called cathodic protection.

Monthly Mock Test (November 30) - Question 11

In the silver plating of copper, K[Ag(CN)2] is used instead of AgNO3. The reason is [2002]

Detailed Solution for Monthly Mock Test (November 30) - Question 11

In the silver plating of copper, K[Ag(CN)2] is used instead of AgNO3. Copper being more electropositive readily precipitate silver from their salt solution

whereas in K[Ag (CN)2] solution a complex anion [Ag(CN)2] is formed and hence Ag+ are less available in the solution and therefore copper cannot displace Ag from its  complex ion.

Monthly Mock Test (November 30) - Question 12

If , the standard EMF of the reaction Fe + 2Fe3+ → 3Fe2+  will be [2006]

Detailed Solution for Monthly Mock Test (November 30) - Question 12

Monthly Mock Test (November 30) - Question 13

A hypoth etical electrochemical cell is shown below [2006] The emf measured is +0.20 V. The cell reaction is

Detailed Solution for Monthly Mock Test (November 30) - Question 13

The cell reacton is as follows :

Monthly Mock Test (November 30) - Question 14

An electr och emical cell is set up as: Pt; H2 (1atm)|HCl(0.1 M) || CH3COOH (0.1 M)| H2 (1atm); Pt. The e.m.f of this cell will not be zero, because [1995]

Detailed Solution for Monthly Mock Test (November 30) - Question 14

For a concentration cell having different concentrations of ions.

If all the concentrations are identical then obviously the cell voltage is zero. But as the pH of 0.1 M HCl (strong acid) & pH of 0.1M CH3 COOH is (weak acid) not same, therefore the cell voltage is not zero.

Monthly Mock Test (November 30) - Question 15

On passing a current of 1.0 ampere for 16 min and 5 sec through one litre solution of CuCl2, all copper of the solution was deposited at cathode. The strength of CuCl2 solution was (Molar mass of Cu= 63.5; Faraday constant = 96,500 Cmol–1) [1996]

Detailed Solution for Monthly Mock Test (November 30) - Question 15

(where q = it = charge of ion) we know that no of equivalent

(where i= 1 A, t = 16×60+5 = 965 sec.) Since, we know that

Normality

= 0.01 N

Monthly Mock Test (November 30) - Question 16

Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?    (2021)

Detailed Solution for Monthly Mock Test (November 30) - Question 16

Relaxin is produced first by the corpus luteum of the ovary and later by the placenta. It helps in parturition as it increases the flexibility of the pubic symphysis and helps dilate the uterine cervix.

Monthly Mock Test (November 30) - Question 17

Capacitation occurs in    (2017)

Detailed Solution for Monthly Mock Test (November 30) - Question 17
• The sperms in the female’s genital tract are made capable of fertilising the egg by secretions of the female genital tract.
• These secretions remove coating substances deposited on the surface of the sperms particularly those on the acrosome
• Thus the receptor sites on the acrosome are exposed and sperm becomes active to penetrate the egg.
• This phenomenon of sperm activation in mammals is known as capacitation.

Monthly Mock Test (November 30) - Question 18

During pregnancy, which of the following is secreted through the urine of the mother?                                  [2016]

Detailed Solution for Monthly Mock Test (November 30) - Question 18

It is made almost exclusively in the placenta. HCG hormone levels found in the mother's blood and urine rise a lot during the first trimester. They may play a part in the nausea and vomiting often linked to pregnancy.

Monthly Mock Test (November 30) - Question 19

Which of these is not an important component of initiation of parturition in humans ? [2015 RS]

Detailed Solution for Monthly Mock Test (November 30) - Question 19
• Prolactin is the hormone which induces lactation (enables females to produce milk) and has no role in parturition.
• Parturition is a phenomenon of giving birth. It is a process of delivering a child from the womb to the outside. It is usually initiated by the release of oxytocin hormone.
• This hormone increases the contraction of uterine muscles. Prostaglandins are synthesized and released in response to the oxytocin hormone. Also, an increase in estrogen and progesterone ratio indicates the initiation of the parturition process.
Monthly Mock Test (November 30) - Question 20

A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is:       [2015 RS]

Detailed Solution for Monthly Mock Test (November 30) - Question 20
• GIFT (Gamete Intra Fallopian Transfer) is a technique helping to have a child.
• Gamete Intra Fallopian Transfer (GIFT) is an assisted reproductive technology in which both the sperm and unfertilised oocytes are transferred into the Fallopian tubes. Fertilisation takes place in vivo (inside the body of the female).

Gamete intra fallopian transfer:

Monthly Mock Test (November 30) - Question 21

The shared terminal duct of the reproductive and urinary system in the human male is:            [2014]

Detailed Solution for Monthly Mock Test (November 30) - Question 21

Urethra is a tube that connects the urinary bladder to the genitals for the removal of fluids from the body. The urethra travels through the penis and carries semen as well as urine.

Monthly Mock Test (November 30) - Question 22

Select the correct option describing gonadotropin activity in a normal pregnant female:           [2014]

Detailed Solution for Monthly Mock Test (November 30) - Question 22

Synthesis of estrogen and progesterone due to high level of hCG is a normal gonadotropic activity in a normal pregnant female.

• Human chorionic gonadotropin is the embryonic hormone, which ensures the corpus luteum continues to produce progesterone throughout the first trimester of pregnancy.
• As well as maintaining progesterone production from the ovary, human chorionic gonadotropin may also play a role in making sure the lining of the uterus (endometrium) is ready to receive the implanting embryo. hCG may also promote the production of other steroids (e.g., estrogen) and protein (e.g., relaxin, inhibin A) hormones whose actions in the uterus may facilitate gestation.
• So, the correct answer is 'High level of hCG stimulates the synthesis of estrogen and progesterone.'

Monthly Mock Test (November 30) - Question 23

The testes in humans are situated outside the abdominal cavity insides pouch called scrotum. The purpose served is for        [2011]

Detailed Solution for Monthly Mock Test (November 30) - Question 23

The testes are present in the scrotum which maintains the scrotal temperature below 2ºC of the internal body temperature.

Monthly Mock Test (November 30) - Question 24

Which one of the following statements about human sperm is correct?                                        [2010]

Detailed Solution for Monthly Mock Test (November 30) - Question 24

Acrosome a small pointed structure at the tip of nucleus. It breaks down just before fertilization, releasing hydrolytic enzymes that assist penetration between follicle cells that surrounds the ovum, thus facilitating fertilization.

Monthly Mock Test (November 30) - Question 25

The signals for parturition originate from

[2010]

Detailed Solution for Monthly Mock Test (November 30) - Question 25

Parturition is the process of delivery of the foetus. The signals for parturition originate from the fully developed foetus and placenta that induce uterine contraction called foetal ejection reflex. This triggers the release of oxytocin hormone from pituitary. This in turn leads to expulsion of the baby out of uterus.

Monthly Mock Test (November 30) - Question 26

In vitro fertilisation is a technique that involves transfer of which one of the following into the fallopian tube?

[2010]

Detailed Solution for Monthly Mock Test (November 30) - Question 26

In vitro fertilization (IVF) or test-tube baby technique involves fertilizing one or more eggs outside the body and then transferring the fertilized eggs known as pre-embryos back into the uterus. Zygote Intra Fallopian Transfer (ZIFT) is an example of IVF. In this, the zygote or early embryos upto 8 blastomeres are transferred into the Fallopian tube. If the embryo has more than 8 blastomeres then it is transferred into uterus called as IUT.

Monthly Mock Test (November 30) - Question 27

Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?    [2009]

Detailed Solution for Monthly Mock Test (November 30) - Question 27

A high blood concentration of progesterone and oestrogen will delay or stop menstruation. A high concentration of sex hormone inhibits ovulation and implantation, as well as alter the quality of cervical mucus to prevent / retard entry of sperms. This happens because high concentration of circulating progesterones are an indication of successful conception and pregnancy. Hence, secretion of follicle stimulating hormone (FSH) and luteinizing hormone (LH) from pituitary is inhibited.

Monthly Mock Test (November 30) - Question 28

Seminal plasma in human is rich in                                                                                          [2009]

Detailed Solution for Monthly Mock Test (November 30) - Question 28

Seminal plasma is composed of the fluid and sperms from the vas deferens. The major components of the seminal plasma in the male reproductive system are mucusspermatozoa, and various secretions of accessory glands. The seminal plasma is rich in fructose, calcium, ascorbic acid, and certain enzymes. It provides nourishment and protection to sperms.

Monthly Mock Test (November 30) - Question 29

Which extra-embryonic membrane in humans prevents desiccation of the embryo inside the uterus?       [2008]

Detailed Solution for Monthly Mock Test (November 30) - Question 29

Amnion is an extraembryonic membrane in human prevents desiccation of the embryo inside the uterus. Amnion is a membrane that encloses the embryo of reptiles, birds and mammals within the amniotic cavity. This cavity is filled with amniotic fluid, in which the embryo is protected from dessication and from external pressure.

Monthly Mock Test (November 30) - Question 30

What happens during fertilization in humans after many sperms reach close to the ovum?   [2008]

Detailed Solution for Monthly Mock Test (November 30) - Question 30

The secretions of the acrosome help the sperm enter into the cytoplasm of the ovum through the zona pellucida and the plasma membrane. ... It is known as acrosomal reaction. Acrosome reaction results in dissolving of corona cells and degeneration of zona pellucida which helps in sperm penetration.

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